The commercial and industrial (C&I) photovoltaic intelligent storage & charging solution is "photovoltaic + energy storage + electric vehicle charging". It integrates various technologies such as photovoltaic power generation, energy storage and pile charging, providing green power for the electrical equipment of industrial and commercial users. It can also provide charging services for electric vehicles. At the same time, the built-in energy storage unit can not only provide supplementary power, but also provide other auxiliary functions, such as peak shaving, valley filling, etc., which effectively improves the system operating efficiency and increases the revenue.
TYPICAL SOLUTIONS FOR COMMERCIAL & INDUSTRIAL PV STORAGE & CHARGING
ABOUT CHINT
CHINT A leading global provider of smart energy solutions
Founded in 1984, CHINT is a leading global provider of smart energy solutions. I t is actively deploying“4+1” industrial sectors including smart electrics, g reen energy, industrial control and automation, smart home and incubator, forming an integrated whole industry chain of “power generation, storage, transmission, substation, distribution, sales and consumption”. And it boasts an extensive business network across over 140 countries and regions as well as more than 30,000 employees and an annual sales revenue of over USD 11.4 billion. CHINT has been ranking among China’s T op 500 companies for 18 consecutive y ears. Its subsidiary, CHINT Electrics is the f irst company in China with low-voltage electrics as its main business getting listed on the A-share market as one of the Top 50 Asian listed companies. To comply with the trend of integrated development of modern energy, intelligent manufacturing and digital technology, CHINT has adopted “One Cloud & Two Nets” as the business strate- gy. CHINT Cloud fulfills digital application and services in both
internal and external as the platform of intelligent technology and data application. Based on the Industrial Internet of Things (IIoT), CHINT built a n intelligent manufacturing system and realizes intelligent application in electrical industry. Relying on the Energy Internet o f Things (EIoT), CHINT built its smart energy system and develops the regional EIoT mode. Focusing on energy system o f supply, s torage, transmission, distribution and consumption, CHINT has core businesses of clean energy, energy distribution, big data and energy value-added s ervices. F urthermore, CHINT pillar businesses include photovoltaic equipment, energy storage, p ower transmission & distribution, low-voltage apparatuses, intelli- gent terminals, software development and control automation. With developing i nto a platform-based e nterprise, CHINT provides a package of energy solutions for public institutions, industrial & commercial users and end users, by building a regional smart energy operation ecosphere.
01 CHINT
ONE CLOUD & TWO NETS STRATEGY
As a user-centric multi-energy complementary smart energy system, CHINT EIoT provides a package of energy solutions for governments, industrial & commercial users and end users. Its business includes Smart Energy Efficiency, Smart Power, Smart Home and Smart Clean Energy, etc. As a smart manufacturing system based on corporate digital transformation, CHINT IIoT constitutes a flexible, high- efficiency and intelligent industrial system. Its business includes Intelligent Manufacturing, Intelligent Industry, Smart Water, Smart Heating, etc.
Energy system optimization is an inevitable trend against the background of resource shortage, environmental pollution and climate change – three challenges faced by global energy development. To keep in line with the trend, CHINT actively implements the business strategy of One Cloud & Two Nets, continuously promotes the deep integration of big data, IoT, AI and manufacturing industry in stages to become a platform-based enterprise, and leads the new direction of industry development. As a medium of smart technology and data applications, CHINT Cloud connects corporate in-house manufacturing with operation and management data, realizing digital applications and services both internally and externally.
CHINT 02
GLOBAL FOOTPRINT
GLOBAL CAPACITY LAYOUT The industrial manufacturing bases are mainly located in Wenzhou, Hangzhou, Shanghai, Jiaxing and Xianyang. Additionally, CHINIT has set up factories in Thailand, Egypt, Singapore, Vietnam, Malaysia, etc.
Egypt Production BaseV
ietnam Production BaseM
alaysia Production BaseT
hailand Solar Power Production Base
Singapore Complete Electric Equipment Production Base
Shanghai Production Base
Hangzhou Production BaseW enzhou Production Base
Jiaxing Production BaseX
ianyang Production Base
03 CHINT
R&D, QUALITY, SALES, LOGISTICS
By providing reliable products and service for clients, CHINT puts forward the concept "Great Quality." Quality control and upgrade is divided into four systems: scientifeicserarch, quality control, marketing service and logistics distribution. Thesmethods and strategies make a comprehensive upgrade to product quality and services. Emphasis on "prevention first, continuous improvement" is the basis of an effective quality inspection system. Leading the management process of "Great Quality" in the productionp rocessc ontrols eachl ink of p roduction accuratelyand realizest he i nstitutionalo perationo f quality improvement.
"Great Quality" is not just a slogan, but a belief rooted incehaemploye 's work. High-quality and accuracyare thebasic requirement. Starting from a routine operation by each staff to implementing a high-quality of production and service, CHINT is your most reliable partner.
Service Concept
Sincerely value care for customers, quality creates Service Purpose Innovative and progressive, satisfying the customers
48-Hour Response
One-stop Services
Integrated Vertical R&D
Great Quality System
Providing end-to-end one-stop services for customers with complaints, business consulting and technical supprot by solving problems immediately and including any possibleolperms in advance.
Ensuring flaw-free and trouble-free products, the multi-dimensional and multilevel control is conducted through procurement, inspection, quality control and certification.
By gathering the glo bal industry elites to Pr ovide safe and stable energy-saving green and advanced electric products.
CHINT's concept is that it is not difficult to fulfill a high -quality logistics distribution at one time, while it is difficult to stay as accurate and prompt as the first-time. High-efficiency and high-precision accuracy are our requirement.
At least 5% of revenue is invested in research and developmen t
CHINT 04
01
PROJECT INTRODUCTION
05 CHINT
PROJECT INTRODUCTION
1.1
SYSTEM INTRODUCTION
1.2
DESIGN PRINCIPLES
1.3
PROJECT BACKGROUND
CHINT 06
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
1.1
SYSTEM INTRODUCTION
The commercial and industrial (C&I) photovoltaic intelligent storage & charging solution is "photovoltaic + energy storage + electric vehicle charging". It integrates various technologies such as photovoltaic power generation, energy storage and pile charging, providing green power for the electrical equipment of industrial and commercial users. It can also provide charging services for electric vehicles. At the same time, the built-in energy storage unit can not only provide supplementary power, but also provide other auxiliary functions, such as peak shaving, valley filling, etc., which effectively improves the system operating efficiency and increases the revenue. It is a typical application of micro-grid, and it is also a new business model in the context of vigorously promoting electric vehicles in various countries, expanding the charging pile market, and rapidly developing energy storage. With the popularization of electric vehicles in the future, the electricity load of major cities will far exceed the existing power supply capacity. At present, the difficulty of urban power expansion has become a reality, and the growth of electric vehicles in the future will lead to urban power shortages. The introduction of photovoltaic and energy storage systems can not only solve the problem of power expansion, but also provide backup power for various industrial and commercial customers to avoid sudden power outages during peak hour power consumption.
Ethernet
LV Cabinet
Data Collection
Video Surveillance
Power Grid
Power Container
AC 380V/220V
Electric Car
AC Charger
AC 380V
String Inverter
String Inverter
GPRS/ Ethernet
Electric Bus
DC Charger
APP
Monitoring Platform Solar Arrays
Solar Arrays Battery System
Figure 1 System Composition of the Solution
07 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
1.2
DESIGN PRINCIPLES
Comply with the principle: The design must implement the relevant national laws, regulations, energy-saving and environmental protection technology policies, and meet the requirements of urban planning and environmental protection;
Coordination principle: The implementation of the project should ensure that the original production and operation activities are not affected by the construction of the project, and the coordination and unity with the surrounding environment.
The principle of improving user economic efficiency: Adhere to customer-oriented, strengthen energy monitoring capabilities, strengthen user energy use characteristics analysis, provide targeted services, meet customers' deep-level and diversified energy service needs, and reduce customer energy costs;
The principle of cost saving: Strive to achieve a compact site layout, save raw materials and space, and save costs as much as possible without affecting the implementation effect;
The principle of energy conservation and environmental protection: The project design should actively adopt new technologies, new designs, and new materials that are energy- saving, environmentally friendly, maintenance-free and meet the requirements of fire protection and safety, health and environmental protection. The principle of safe and reliable power supply: Comprehensively understand and analyze the status quo of the distribution network, combined with short-term and long-term planning, to meet the requirements of the power supply capacity of the grid and the principle of power supply reliability;
CHINT 08
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
1.3
PROJECT BACKGROUND
The project is based on existing idle resources (such as existing factory roofs and carports), making full use of existing relatively mature clean energy technologies to power the equipment in the factory area. At the same time, it provides charging services for the electric vehicles of factory staff, realizing the popularization of green energy in the factory, reducing excessive dependence on urban electricity, and promoting the electricity revenue of the factory. The photovoltaic intelligent storage & charging system integrates distributed solar power system, energy storage system and electric vehicle charging system. Through the energy management system, the application of each energy can be effectively adjusted to meet the application needs of customers and conform to the current carbon neutral development plan, which is of positive significance.
Distributed solar power system: Install solar modules on the roof of building or carport to generate electricity. Green power is given priority to all electrical equipment in the charging station, including lighting, air conditioning and electric vehicle charging, so as to achieve self-generation, self-sufficiency, and surplus electricity to gain extra income;
Energy storage system: Store the excess electricity generated by solar system, and store the electricity during the low electricity price at night, and release electricity during the peak hour consumption of the day to realize the income of peak and valley difference in electricity prices;
Electric vehicle charging system: Built charging parking spaces on existing open spaces, all equipped with DC charger or AC charger, to meet various charging needs of users;
Energy management system: It can realize real-time monitoring, dispatching, load restraint and other functions of solar system, energy storage, electric vehicle charging, and power distribution.
09 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
1.3
PROJECT BACKGROUND
Figure 2 Industrial and Commercial Roof Installation Renderings
CHINT 10
02
TYPICAL SOLUTION
POWER
RUN
GRID
FAULT
SCA Series
11 CHINT
TYPICAL SOLUTION
2.1
APPLICATION SCENARIOS
2.2
SYSTEM DESIGN
2.3
EQUIPMENT SELECTION
CHINT 12
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.1
APPLICATION SCENARIOS
The C&I photovoltaic intelligent storage & charging solution integrate distributed solar systems, energy storage systems, charging systems, and monitoring platform. This solution makes full use of the roof and carport of the building to construct a solar system. The generated electric energy firstly supplies electric vehicles and other loads in the factory, and the excess electric energy will be stored in the energy storage system to supplement when the solar energy system is insufficient. Through the coordination between solar energy and energy storage systems, it can minimize the amount of electricity obtained from the grid and increase customer profits. Application scenarios: During the day, when the solar radiation is sufficient, the solar system directly supplies power to the charger and the factory load, and the excess power will be stored in the energy storage system.
During the peak electricity consumption period, the energy storage system meets the load's electricity demand through discharge and achieves peak-to-valley income.
When the power generated by the solar system cannot meet the power demand of the load, the energy storage system will provide supplement.
When the energy storage system is not fully charged, it can be charged at night when the electricity price is low, and discharged during the peak hours of the next day to obtain electricity income between peaks and valleys. The system is dispatched and adjusted according to power demand, so that the solar system, energy storage system and charging system are perfectly coordinated, thereby increasing customer revenue.
Factory Power Distribution
Energy Management Platform
AC Busbar
AC
AC
DC
DC
On-grid Inverter
Battery Inverter
DC Charger 60kW
AC Charger 7/22kW
Solar Modules
Battery
Electric Bus
Electric Car
Figure 3 System Schematic Diagram
13 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.2
SYSTEM DESIGN
The power station uses the factory roof and carport roof to install solar power system, with a total installed capacity of about 351kWp. The usable area of the factory roof is about 2400m 2 , and 234kWp solar modules can be installed. The factory has 40 parking spaces and a carport area is about 500m 2 , and a total installed capacity of solar modules is 117kWp. The energy storage system adopts a modular design with an installed capacity of 100kW / 256kWh. The charging system uses one 60kW dual-gun DC charger and six sets of 7kW AC chargers, with a total of 8 charging parking spaces, the total installed power is 102kW.
Figure 4 Project Site Installation Renderings
CHINT 14
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Solar Module 2.3.1
Solar modules are the core components of solar power generation systems, and their photoelectric conversion efficiency and the advantages and disadvantages of various parameters directly represent the power generation performance of the entire system. Currently, there are many types of solar modules on the market, most of which are monocrystalline, and the power of the modules is increasing. The greater the power of the module, the fewer the number of modules used in a project of the same capacity, and the fewer corresponding DC-side cables. The overall loss of the system is reduced, and the workload of later operation and maintenance is reduced too.
Figure 5 The Main Solar Modules of CHINT Energy
Table 1 The Main Solar Modules of CHINT Energy
NO. AstroSemi Mono PV Panels Model
Max. System Voltage Power Range Main Power Module Efficiency
ASTRO 3 -- 158.75mm Half Cell+9BB+PERC
410Wp 415Wp
20.30% 20.50%
1
CHSM72M-HC
1500Vdc
405-420
ASTRO 4 -- 166mm Half Cell+9BB+PERC
2
CHSM60M-HC
1500Vdc
370-380
375Wp
20.60%
3
CHSM60M(BL)-HC
1000Vdc
355-365
365Wp
20.00%
4
CHSM72M-HC
1500Vdc
445-455
450Wp
20.70%
ASTRO 5 -- 182mm Half Cell+11BB+PERC
5
CHSM72M-HC
1500Vdc
530-545
535Wp
20.90%
15 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Solar Module 2.3.1
NO. AstroTwins Mono PV Panels Model
Max. System Voltage Power Range Main Power Module Efficiency
ASTRO 3 -- 158.75mm Half Cell+Bifacial+9BB+PERC
405Wp
19.70% 13.80%
1
400-415
1500Vdc
CHSM72M(DG)/F-BH
410Wp 19.90% 14.00%
ASTRO 4 -- 166mm Half Cell+Bifacial+9BB+PERC
370Wp 375Wp 445Wp
20.30% 14.20% 20.60% 14.40% 20.50% 14.30%
365-380
1500Vdc
CHSM60M(DG)/F-BH
2
435-450
1500Vdc
CHSM72M(DG)/F-BH
3
ASTRO 5 -- 182mm Half Cell+Bifacial+11BB+PERC
525-540
530Wp
20.70% 14.50%
1500Vdc
CHSM72M(DG)/F-BH
4
Considering comprehensively, this scheme selects high-efficiency monocrystalline solar panel with a power of 450Wp.
Astro 4 Semi Create Sustainable and Efficient Green Energy
440W~455W CHSM72M-HC Series (166) Monocrystalline PV Module
Tier 1 Bloomberg
2020 TOP Performance DNV GL
Green Building Materials
Underwritten by International Insurer
12-year Warranty for Materials and Processing 25-year Warranty for Extra Linear Power Output (1st year ≤ 2.0%, 2nd~25th years ≤ 0.55% / year)
98.00%
84.80%
84.80%
CHINT 16
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Solar Module 2.3.1
KEY FEATURES
OUTPUT POSITIVE TOLERANCE
+ 5W
GUARANTEED 0~+5W POSITIVE TOLERANCE TO ENSURE POWER OUTPUT.
INNOVATIONAL HALF-CUT TECHNOLOGY BETTER SHADING TOLERANCE, HIGHER RELIABILITY.
INNOVATIONAL MULTI-BUSBAR TECHNOLOGY HIGHER LIGHT ABSORPTION, LOWER RISK OF MICROCRACK.
SUPER PERC+ CELL TECHNOLOGY
HIGHER MODULE POWER AND MODULE EFFICIENCY, LOWER POWER DEGRADATION.
PID RESISTANCE
EXCELLENT PID RESISTANCE.
COMPREHENSIVE CERTIFICATES
IEC TS 62941
The first solar company which passed the TUV Nord IEC/TS 62941 certification audit.
CURVE
Current-Voltage curves(450W)
Current-Voltage & Power-Voltage curves(450W)
12
10 12
500
10
1000W/m 2
0 100 200 300 400
800W/m 2
8
Cells temp.=25 ℃ Cells temp.=35 ℃ Cells temp.=45 ℃ Cells temp.=55 ℃ Cells temp.=65 ℃
8
600W/m 2
6
4 6
400W/m 2
4
200W/m 2
2
2
0
0
0 5 10 1520 25 3035 40 4550
0 5 101520253035404550
Voltage(V)
Voltage(V)
17 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Solar Module 2.3.1
Table 2 Electrical Parameters of Solar Modules
ELECTRICAL SPECIFICATIONS
STC rated output (Pmpp)
440 Wp
445 Wp
450 Wp
455 Wp
Rated voltage (Vmpp) at STC
40.85 V
41.05 V
41.32 V
41.51 V
Rated current (lmpp) at STC
10.77 A
10.84 A
10.89 A
10.96 A
Open circuit voltage (Voc) at STC
48.50 V
48.80 V
49.05 V
49.35 V
Short circuit current (Isc) at STC
11.24 A
11.30 A
11.37 A
11.44 A
Module efficiency
20.2%
20.5%
20.7%
20.9%
Rated output (Pmpp) at NMOT
327.1 Wp
330.8 Wp
334.5 Wp
338.2 Wp
Rated voltage (Vmpp) at NMOT
37.93 V
38.12 V
38.37 V
38.55 V
Rated current (Impp) at NMOT
8.62 A
8.68 A
8.72 A
8.78 A
Open circuit voltage (Voc) at NMOT
45.42 V
45.70 V
45.94 V
46.22 V
Short circuit current (Isc) at NMOT
9.06 A
9.10 A
9.16 A
9.22 A
Temperature coefficient (Pmpp)
- 0.35%/°C
Temperature coefficient (Isc)
+0.035%/°C
Temperature coefficient (Voc)
- 0.28%/°C
Nominal module operating temperature (NMOT)
41±2°C
Maximum system voltage (IEC/UL)
1500VDC
Number of diodes
3
Junction box IP rating
IP 68
Maximum series fuse rating
20 A
STC: Irradiance 1000W/m², Cell Temperature 25°C, AM=1.5 NMOT: Irradiance 800W/m², Ambient Temperature 20°C, AM=1.5, Wind Speed 1m/s
CHINT 18
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Solar Module 2.3.1
MECHANICAL SPECIFICATIONS
Outer dimensions (L x W x H)
2094 x 1038 x 35 mm
Aluminum, silver anodized 3.2 mm Portrait: 300 mm Landscape: 1300 mm 4 mm² / 12 AWG 5400 Pa (front) / 2400 Pa (back) Class C (IEC) or Type 4 (UL) HCB40 / MC4-EVO2
Frame technology Front glass thickness Cable length (IEC/UL) Cable length (IEC/UL) ① Maximum mechanical test load
Fire performance (IEC/UL) Connector type (IEC/UL)
Refer to Astronergy crystalline installation manual or contact technical department. Maximum Mechanical Test Load=1.5×Maximum Mechanical Design Load.
MODULE DIMENSION DETAILS PACKING SPECIFICATIONS
① Module Weight
23.5 kg
② Packing unit Weight of packing unit (for 40‘HQ container) Number of modules per 40‘HQ container
31 pcs / box
772 kg 682 pcs
② Subject to sales contract
① Tolerance
+/- 1.0kg
MODULE DIMENSION DETAILS
A-A 40:1
1038 mm
35 mm
10:1
Grounding hole
11 mm
8-9 mm x 14 mm Mounting hole
20 mm 9 mm
989mm
Mounting hole 4-7 mm x 10 mm
989mm
16-3.5 mm x 8.5 mm Drainage hole
35 mm
© Chint Solar (Zhejiang) Co., Ltd. Reserves the right of final interpretation. please contact our company to use the latest version for contract.
19 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Grid-connected Inverter 2.3.2
The grid-connected inverter converts direct current (DC) into alternating current (AC) suitable for injection into the grid. Generally, there are three types of grid-connected inverters: micro inverters, string inverters and centralized inverters. The comparative analysis is shown in the table below.
Table 3 The Comparative Analysis of Grid-connected Inverters
Item
Micro-Inverter
String Inverter Centralized Inverter
Centralized large power station
Not applicable
Applicable
Applicable
Large-scale distributed industrial and commercial rooftop power station Small and medium-sized distributed C&I rooftop power station Distributed residential rooftop power station Number of solar modules corresponding to a single MPPT
Not applicable
Applicable
Applicable
Applicable
Applicable
Not applicable
Applicable
Applicable
Not applicable
Single string
1-4 strings
Large number of strings
MPPT voltage range
Wide
Wide
Narrow
Power generation efficiency
Highest
High
General
Installation area
No need
No need
Need a separate room
Outdoor installation
Allowed
Allowed
Not allowed
Maintainability
Difficult to maintain
Easy to maintain
General
Inverter cost
Micro Inverter > String Inverter > Centralized Inverter
Micro Inverter > String Inverter / Centralized Inverter (the two are similar)
System cost
As a well-known inverter supplier at home and abroad, Chint Power Company not only provides 1KW-3.125MW grid-connected PV inverters, but also provides battery modules, ESS cabinets, PCS and energy storage systems and overall solutions.
20 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Grid-connected Inverter 2.3.2
After comprehensively considering the system capacity, grid-connected voltage and system cost, the project chose a 110kW string inverter.
CPS SCA110KTL-DO/EU CHINT Power 1500V String Inverter
Low Investment: Three-phase string inverters products provide standard configuration DC switch, integrated DC combiner box, standard class II lightning protection, optional PLC/RS 485 communication, which can match the requirements of different customers. High Profits: Three-phase string inverters can provide 99% maximum efficiency, 98.5% Euro efficiency, 99.5% MPPT efficiency, advanced topology design and international known device options, which can guarantee the profits of the whole life cycle. Maintenance Warranty: String inverter can support remote monitoring, fault diagnosis and software upgrade,7*24H after-sales service can guarantee the maintenance of the whole life cycle.
Table 4 Electrical Parameter of 110kW String Inverters
Item
CPS SCA110KTL-DO/EU CPS SCA110KTL-DO/EU2
Max. DC voltage DC Input
1100Vdc
MPPT Voltage Range(full load)
500 - 870Vdc
Start voltage
300Vdc / 100W
600Vdc
Rated DC voltage
Number of MPPT
9
12
Number of strings per MPPT
2
1
Max. DC current
9*26A
12*26A
Max. Current for input connector
30A
DC switch
Integrated switch
21 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Grid-connected Inverter 2.3.2
AC Output
Rated AC power
100kW
Max. AC power
110kVA
Rated AC voltage
400Vac
322Vac - 528Vac
Rated AC voltage range
Grid Connection Type
3Φ / PE
Max AC Output Current
160A
Grid frequency
50Hz / 60Hz
Rated frequency range
45-55Hz / 55-65Hz
Power factor( cos Φ )
±0.8 (adjustable)
Current THD
< 3%
AC disconnection type
System Data
Topology
Transformerless
Max. efficiency
98.80%
Euro efficiency
98.40%
< 30W / < 6 W
Consumption at night/ standby
Environment Data
Ingress Protection
IP66
Cooling method
Cooling Fans
- 30 ℃ to + 60 ℃
Operating Temperature
Ambient humidity
0-100%
Altitude
4000 m
Display and Communication
Display
LED + APP (Bluetooth + Wi-Fi)
Communication
RS485 (standard) /PLC (Optional)
Mechanical Data
Dimensions (W*H*D)
1050*660*340 mm
Weight
86 kg
Safety
Certifications
LVD, IEC 61727, IEC 62116, EN 50549
CHINT 22
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Storage System (PCS+Battery) 2.3.3 CHINT ESS is committed to the convenient, efficient and stable energy, to create a safer and sustainable operating environment. The electricity cost is different in most areas in the whole day. And it is more expensive in the daytime. The promotion purpose of the energy storage system is to encourage users to develop smart power plans. To keep the safety and stability for the grid supplier, to avoid more loss at the generation side. Charging at low price and discharging at high price, to reduce the electricity cost. Energy storage converter, also known as two-way energy storage inverter, English name PCS (Power Conversion System), used in AC coupled energy storage systems, it is a device that realizes two-way conversion of electric energy, such as convert the battery's DC current into AC current, and then send it to the grid or AC loads, or convert the AC current into DC current to in charge the battery. PCS has two working modes: on-grid and off-grid. The grid-connected mode realizes the two- way energy conversion between the battery pack and the grid. It has the characteristics of grid-connected inverters, such as anti-islanding, automatic tracking of grid voltage phase and frequency, low voltage ride-through, etc. It can be dispatched according to the grid or local control. Off-grid mode, also known as isolated grid operation, is to disconnect from the main grid when the set requirements are met, and to provide partial loads with AC power that meets the power quality requirements of the grid. The project uses lithium iron phosphate batteries, which have the advantages of high power density, high cycle times, high depth of discharge, high safety, and wide operating temperature range. They are currently widely used in energy storage carriers. The parameter is shown in the figure below. It consists of a battery cabinet and an electrical cabinet. The battery cabinet is equipped with battery modules, a set of BMS, and a high-voltage cabinet.
PCS Cabinet
Battery Cabinet
23 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Storage System (PCS+Battery) 2.3.3
Table 5 Electrical Parameter of ESS Cabinet
Model Name
ESS-100/256
DC Input
Max. DC voltage
1000Vdc
DC voltage range
500Vdc ~ 900Vdc
Max. DC current
228A
yes
Auto buffering function
Grid-tied AC Output
Rated AC output power
100kW
Max. output power
110kVA
Rated grid voltage
400Vac
Grid voltage range
-15% ~ +15% (settable)
Rated grid frequency
50Hz (45Hz ~ 55Hz settable) / 60Hz ( (55Hz ~ 65Hz settable)
Max. output current
159A
Grid connection type
3 phase/ PE/N (neutral optional)
Total harmonic distortion
< 3%
Off-grid AC Output
Rated AC output voltage
400Vac
Output voltage precision
1%
Max. output current
159A
Overloading capability
110% overload
General Data
Max. efficiency
96.40%
Isolation transformer
yes
IP grade
IP54
Operation temperature
- 30°C ~ +65°C ( > 45° derating)
Relative humidity
0-95%, No condensation
Cooling type
Intelligent forced air cooling
Dimension(W*H*D)
800*1800*800 mm
Altitude
4000m (> 3000m derating)
Display
Touch screen
Communication
BMS: CAN/RS485 EMS: Ethernet/RS485 WIFI (optional)
Battery Information
Battery capacity (kWh)
256
Rated voltage (Vdc)
518
Operating voltage range (Vdc)
420-588
Battery chemistry
LFP
CHINT 24
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
AC/DC Charger 2.3.4 Electric vehicles have no tailpipe emissions. Replacing conventional vehicles with EVs can help improve roadside air quality and reduce greenhouse gas emissions. In view of the rapid development of EV technology, electric private cars may become the main stream vehicles in the foreseeable future. To support the wider use of electric private cars, governments of various countries have been sparing no efforts in enhancing the EV charging infrastructure and network. The input end of the charger is directly connected to the AC grid, and the output end is equipped with a charging plug for charging electric vehicles. According to different charging methods, chargers can be divided into AC chargers and DC chargers. The AC charger is slow charging, and the DC charger is fast charging. The parameters are as follows:
Table 6 Electrical Parameter of AC Charger
Name
Smart AC Charger
AC230/ 7kW B/C
AC400/ 22kW B/C
Model Order Code
7kW
22kW
Power
Charging mode
MODE 3 CASE B/C
350*150*650 mm
Dimensions (W * H * D)
Weight
9.08 kg
9.48 kg
Input voltage
230 V±15%
400VAC±15%
Input frequency
50/60Hz
Input Current
Current adjust
Efficiency
> 99%
Output charging interface
Socket/ Plug
Leakage current protection
TYPE B RCCD
Charging protocol
IEC 61851-1
Start method
RFID Card / Via OCPP
LED indicator
LED Light belt with red, blue, green
Meter
Power meter with MID certificate
Communication method
Wi-Fi
Protocol
OCPP1.6J
Background function
Build-in background via browser / WIFI system upgrade
Broken record
Charge records / Fault records
Overcurrent protection; B-type leakage protection; Overvoltage protection; Under voltage protection; Relay over-temperature protection; Socket or plug over temperature protection; CP fault protection; Relay adhesion protection
Protective function
IP rating
IP54
Operating temperature
-25°C to +50°C
Working humidity
≤ 95% RH
Certification
CE
25 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
AC/DC Charger 2.3.4
Table 7 Electrical Parameter of DC Charger
Model
60kW DC Charger
Input Data
380/400AC ±10%
Input voltage
Input Hz
50/60Hz ± 5hZ
Input current
Max 104A
3P+N+PE
supply system
Power factor
≥ 0.99
≤ 5 %
THD
Output Data
Mode 4 CASE C
Charging model
Connector type
CCS2
CHAdeMO
cable length
4.5m
Output voltage
200V-750VDC
200V-500VDC
Output current
0-150A
0-125A
Charging protocol
DIN70121
CHAdeMO 2.0
Electronic lock
NA
Yes
Features
Local startup by card
Startup mode
Card reader
Support MF1 card meet ISO14443 Type
Card type
M1 card
Touch screen, 8 Inches
Interface
Payment system
no Meet GB/T29318-2012
power metering
Communication methods/ protocol
need docking
Ingress protection
IP54
Over current protection, residual current protection, ground protection, surge protection, over/ under voltage protection, over/ under frequency protection, over/under temperature protection
Electrical protection
Noise
≤ 70 dB
Efficiency
≥ 94%
CHINT 26
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
AC/DC Charger 2.2.4
Operating temperature
—25°C+50°C
Working humidity
5% ～ 95%
Standards
IEC 61851-1, IEC 61851-23, IEC 61851-24
Certification Standards
EMC level
Support IEC61000 EMC class B, IEC 61851-21-2
Certification
TUV SUD certificated
Basic Information
60kW DC charger on Euro standard
Name
Model
TCDZ-DC0.75/60
Power
60 kW
Mode 4 CASE C
Charging model
Dimensions (L*W*H)
700*500*1700 mm ≤ 320 kg
Weight
AC Charger
DC Charger
27 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
2.3
EQUIPMENT SELECTION
Energy Management System 2.3.5 The energy management system (EMS) can monitor the power supply, power load, energy storage system, chargers and other devices in the system in real time, and can interact with the charging cloud platform and the energy cloud platform remotely to maximize the use of the distributed solar system and ensure the best power quality and the highest economic benefits. It provides auxiliary response and coordinated dispatch services for the distribution network.
Monitoring platform
Data Switch
PCS
Battery
AC/DC Charger
String Inverter
Metering
Figure 6 System Network Structure
Figure 7 Photovoltaic Intelligent Charging & Storage Monitoring Platform
CHINT 28
03
SYSTEM SCHEME
29 CHINT
SYSTEM SCHEME
3.1
CONFIGURATION
3.2
CONCLUSION
CHINT 30
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
3.1
CONFIGURATION
The project is designed to install 780 monocrystalline silicon solar panels with a standard power of 450Wp and a total capacity of 351kWp. The system adopted a 110kW string inverter, 20 solar panels connect to one string, and 13 strings connect to one inverter. The energy storage system adopts an independent outdoor cabinet design. PCS, battery modules, EMS, fire alarm system and HVAC are all concentrated in the cabinet. The system is mainly used in new energy integration systems, and can also achieve special functions such as peak-to-valley power adjustment and demand adjustment. Among them, the PCS capacity is 100KW, and the battery module capacity is 256kWh. The entire power station has three string inverters and an energy storage system, which are connected to the customer’s side through one 4in-1out AC combiner box. At the same time, according to customer needs, a 60kW DC charger and six sets of 7kW AC chargers are also equipped to supply power to the electric vehicles of the employees in the factory.
According to the above system analysis and product selection, the configuration list of the system is as follows:
Table 8 Configuration List of the Project
Item
Product Name
Technical Parameter
Unit
QTY
Solar Modules
CHSM72M-HC-450Wp (166), Mono
pcs
780
Mounting System
set
1
Tile roof, flat installation, aluminum alloy
Solar System
String Inverter
set
3
110kW, three phase 400Vac, IP65
Cables AC Combiner Box
DC/AC Cables 4 IN-1 Out (4*200A, 1*800), 400Vac
set set
1 1
PCS Cabinet
set
1
100kW, three phase 400Vac, IP65
Storage System
Battery Cabinet
256kWh, Lithium battery, IP65
set
1
Cables
set
1
AC Cables
7kW AC Charger, Mode 3 case C, Input voltage 230Vac, 50/60Hz, IP54 60kW DC Charger, Mode 4 case C, Input voltage 400Vac, 50/60Hz, IP54
set
6
AC Charger
Charging System
DC Charger
set
1
Cables
set
1
AC Cables
Collect the information and upload to the platform
Control Cabinet
set
1
EMS
EMS Software
set
1
Cables
set
1
Communication Cables
31 CHINT
TYPICAL SOLUTIONS FOR C&I PV STORAGE & CHARGING
3.2
CONCLUSION
According to the calculation of the solar radiation 4.5kWh/m².day, the power generation of the 351kWp solar power station in the first year is about 440MWh. The electricity price of the factory during the day is about US$0.104/kWh, so it can be seen that the power station can save at least US$45,830 in electricity bills every year. In addition, the annual income of chargers is nearly US$15,000, so the investment payback period of the entire project is about 5 years, which is extremely valuable for investment. At the same time, industrial and commercial photovoltaic charging and storage projects are clean energy projects. According to the annual power generation capacity of the solar power system, it is estimated that at least 30 tons of CO 2 , 0.12 tons of SO 2 and 0.12 tons of NOx can be saved each year. With the increasing development of the international carbon emission trading market, the energy saving and emission reduction will also be one of the main sources of customer benefits in the future.
The development and application of photovoltaic intelligent charging & storage solution will play an active role in the development of power supply and clean energy in the future.
It uses clean energy to supply power and uses battery system to store electrical energy. Photovoltaic, energy storage and charging facilities constitute a microgrid. The microgrid can interact intelligently with the public grid according to demand, and can achieve two different operating modes: grid-connected and off-grid. The application of energy storage system can also reduce the impact of charging piles on the regional power grid during high- current charging.
It can not only provide green electricity for electric vehicles, but also can realize auxiliary service functions such as peak shaving and valley filling, which can effectively improve the operating efficiency of the system.
It will be able to build a system integrating generation, construction, transformation, distribution, and sales in the limited land resources, and achieve a basic balance between local energy production and load consumption through energy storage and optimized configuration. In addition, in many energy storage systems of photovoltaic intelligent charging & storage solution, some batteries that have been eliminated in electric vehicles are also used, thereby realizing echelon utilization of power batteries. If the echelon utilization of batteries can be popularized, this will greatly solve the problem of battery recycling in new energy vehicles. The photovoltaic intelligent charging & storage solution is a bold innovation attempt in the use of renewable energy, energy storage applications and the construction of new energy vehicle charging stations. In recent years, with the support of governments and policies of various countries and regions, the energy storage industry has cooperated with manufacturers, user units, and investment and financing institutions to jointly explore industrial models covering upper, middle and lower reaches. The entire industrial chain of the energy industry accelerates the commercialization of the market process. The photovoltaic intelligent charging & storage solution have gradually become a new focus in the global photovoltaic field.
CHINT 32
Asia Pacific
Indonesia
China | Global HQ
PT. CHINT Indonesia Address: Kompleks Prima Center I, Blok C9-10, Jl. Pesing Poglar Jl. Pool PPD No. 11, RT.9/RW.2, Cengkareng, Jakarta Barat. Tel: +62 21 5436 3000
Zhejiang CHINT Electrics Co., Ltd. Address:A3 Building, No. 3655 Sixian Road, Songjiang Shanghai 201614.
Tel: +86 21 5677 7777 Fax: +86 21 5677 7777 Email: global-sales@chintglobal.com Website: www.chintglobal.com
Email: sales@chint-indonesia.com Website: www.chint-Indonesia.com
Singapore | Asia Pacific HQ
CHINT Vietnam Holding Co., Ltd Address: So 2Bis-4-6, Le Thanh Ton, P. Ben Nghe Quan 1, Ho Chi Minh, Vietnam. Tel: +84 0283 8270 015 Email: marketing.vn@chintglobal.com Website: www.chintglobal.vn Vietnam Sunlight Electrical (VN) Co., Ltd Address: 20 Doc Lap Ave, VSIP, Thuan An City, Binh Duong Province, Vietnam. Tel: +84 0274 3743 505
CHINT Global Pte Ltd Address: 8 Kallang Avenue, #04-06/09 Aperia Office Tower 1, Singapore 339509.
Tel: +65 6329 3110 Fax: +65 6329 3159 Website: www.chintglobal.com
Sunlight Electrical Pte Ltd Address: 1 Third Chin Bee Road, Singapore 618679.
Tel: +65 6741 9055 Fax : +65 6265 4586
Email: sales.sev@sunlightgroup-vn.com.vn Website: www.sunlightvetnam.com.vn
Email: sales@sunlightgroup.com Website: www.sunlightgroup.com
Cambodia
India
CHINT (Cambodia) Power Equipment Co., Ltd Address: No.15, St. 542, Sangkat Boeung Kok 1, Khan Toul Kork, Phnom Penh, Cambodia. Tel: +855 23 231 077
CHINT India Energy Solution Private Limited Address: Discovery Tower, Plot No. A-17, Ground Floor Industrial Area Sector 62
Noida, India 201309. Tel: +91 1202 9750 57 Email: marketing@chint.co.in Website: www.chint.co.in
Email: lbin3@chintglobal.com Website: www.chintglobal.com
SchneiTec CHINT Co., Ltd Address: Ansor Kdam Village, Sna Ansa Commune, Krakor District, Pursat Province, Cambodia Tel: +855 09 5353 268 Email: liubin@schneitec-chint.com.kh / info@schneitec-chint.com.kh Website: www.schneitec-chint.com.kh
CHINT Electric Co., Ltd Address: Unit 201, Taipan Place, F. Ortigas Jr. Road, Ortigas Center, Pasig City, Metro Manila, Philippines. Tel: +63 967 273 0174 / +63 977 017 6320 Email: liq07@chintglobal.com / wencell@chintglobal.com Website: www.chintglobal.com Philippines
Brazil Latin America
CHINT ELECTRICS (HONG KONG) LIMITED (Ecaudor Branch) Add.: Calle: REP.DEL SALVADOR Número: 10-84 Intersección: AV NACIONES UNIDAS Edificio: CENTRO COMERCIAL MANSION BLANCA E-mail: lufz@chintglobal.com Ecuador
CHINT Elétricos América do Sul Ltda. Add: Av. Paulista, 1765 - Edifício Scarpa - Conjunto 22 , Bela Vista - CEP
01311-200 - São Paulo - SP Tel. : +55 (11) 3266-7786 E-mail: chintbr@chint.com
CHINT LATAM (PERU) S.A.C. Add: Av. Camino Real No.348, Torre El Pilar, Oficina 603, San Isidro, Lima 27, Peru Tel: +51 1 763 4917 Email: chintlatamperu@chint.com Peru
Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35Powered by FlippingBook