2.1MW PV Charging System Project Case
项目简介 | Project Introduction
本2.1MW光伏充电系统为大型分布式光储充一体化供电方案，配置10把充电枪，面向新能源汽车直流快充、光伏就地消纳及园区绿色用能场景。系统依托成熟大功率双向DCDC变换技术，具备丰富锂电池、超级电容充放电及安全控制实践经验，实现光伏发电、储能、直流充电的协同运行。整机由5套420kW子系统构成，总功率2100kW，支持光伏直流快充，实现绿色电力就地高效利用。
This 2.1MW PV charging system is a large distributed PV-storage-charging integrated power supply solution equipped with 10 charging guns, targeting DC fast charging for new-energy vehicles, on-site PV consumption and green energy utilization in industrial parks. Based on mature high-power bidirectional DC-DC conversion technology and rich practical experience in lithium-ion battery, super-capacitor charge-discharge and safety control, it achieves coordinated operation of PV generation, energy storage and DC charging. The whole unit consists of five 420kW subsystems totaling 2100kW, supporting PV direct DC fast charging and efficient on-site utilization of green power.
执行参考标准 | Reference Standards
产品设计、生产、检验严格遵循国家及行业相关标准，涵盖电工电子环境试验、低压成套设备、电磁兼容、储能系统接入配电网、电力电缆设计、电动汽车充电安全、储能电池管理、外壳防护等全套规范，同时兼容部分IEC国际标准，保障设备安全可靠运行。
Product design, manufacturing and inspection strictly comply with national & industrial standards, covering environmental tests for electrical & electronic products, low-voltage switchgear, EMC, energy-storage grid-connection, power-cable design, EV charging safety, battery-management, enclosure protection and other specifications. Partial IEC international standards are also adopted to ensure safe and reliable equipment operation.
系统拓扑说明 | System Topology Description
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图1：系统拓扑图 | Figure 1: System Topology Diagram |
整套系统配置10寸本地触摸屏，实现本地数据监控、触摸功能操作；配置1路RS485通讯接口，支持遥控、遥测、遥调远程功能。系统拓扑为单套420kW子系统，整个系统由5套子系统构成，共计2100kW。每套子系统内，光伏发电经DCDC单元接入，充电枪经DCDC单元为车辆直流快充，实现光伏、储能、充电枪之间的双向能量交互。
The system is equipped with a 10-inch local touch screen for on-site data monitoring and touch-based operation. One RS485 communication port is provided for remote telecontrol, telemetry and tele-adjustment. The system topology consists of single 420kW subsystems, with five subsystems totaling 2100kW. Within each subsystem, PV power is connected via DC-DC units and charging guns deliver DC fast charging to vehicles via DC-DC units, realizing bidirectional energy interaction among PV, energy storage and charging guns.
完整全套参数表 | Complete Parameter Tables
表1 30kW DCDC单元电气参数 | Table 1 Electrical Parameters of 30kW DC-DC Unit
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序号 No. |
电气类目 Category |
详细类目 Item |
规格 Specification |
|
1 |
直流电压 DC Voltage |
充电枪侧直流电压 Charging-gun-side DC Voltage |
200-1000Vdc |
|
|
|
光伏侧直流电压 PV-side DC Voltage |
300-850Vdc |
|
2 |
直流电流 DC Current |
充电枪侧直流电流 Charging-gun-side DC Current |
≤100A |
|
|
|
光伏侧直流电流 PV-side DC Current |
≤50A |
|
3 |
转换效率 Conversion Efficiency |
HV 750V, LV 600V |
98% (Obtained under lab conditions) |
|
4 |
额定功率 Rated Power |
|
30kW |
|
5 |
工作模式 Operation Mode |
|
Constant-voltage / constant-current |
|
6 |
电压稳定度 Voltage Stability |
静态 Static |
±1% |
|
|
|
动态 Dynamic |
±3% |
|
7 |
电流稳定度 Current Stability |
静态 Static |
±1% |
|
|
|
动态 Dynamic |
±3% |
|
8 |
通信接口 Communication Port |
CAN2.0A/B |
CAN2.0A/B |
|
9 |
供电方式 Power Supply |
|
None |
|
10 |
设置方式 Configuration |
|
Via PC or upper computer by communication |
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11 |
保护 Protection |
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Input over/under-voltage, output over-voltage, short-circuit, over-temperature, communication fault protection |
|
12 |
尺寸 Dimension |
H×W×D |
84mm × 300mm × 395mm (excluding handle & socket) |
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13 |
重量 Weight |
|
≤16kg |
|
14 |
操作方式 Control Mode |
|
Auto or communication-based control |
|
15 |
散热方式 Cooling |
|
Air cooling |
表2 充电枪参数 | Table 2 Charging Gun Parameters
|
项目 Item |
规格 Specification |
|
电源触点额定电流 Rated Current of Power Contacts |
250A |
|
电源触点额定电压 Rated Voltage of Power Contacts |
1000V |
|
温度监控 Temperature Monitoring |
Pt1000 |
|
插针 Pins |
3 (PE, DC+, DC-) |
|
信号 Signal |
6 (S+, S-, A+, A-, CC1, CC2) |
|
温升 Temperature Rise |
<50K |
|
连接方式 Connection Mode |
Crimping, non-separable |
|
耦合时拔插力 Insertion/Extraction Force |
≤140N |
|
拔/插周期 Plug/Unplug Cycles |
≥10,000 times |
|
工作环境温度 Operating Temperature |
-30℃ ~ +50℃ |
|
抗冲击力 Impact Resistance |
Withstands 1m drop & 2-ton vehicle rolling pressure |
|
绝缘电阻 Insulation Resistance |
≥2000MΩ (room temperature) |
|
保护等级 Protection Class |
IP55 when mated to vehicle socket; IP54 with protective cover |
|
充电模式 Charging Mode |
Mode 4 |
|
针数 Pin Count |
9-hole |
表3 整机规格参数 | Table 3 Complete Unit Specifications
|
模块 Module |
项目 Item |
参数 Parameter |
|
光伏1-14端口参数 |
**大输入功率 Max. Input Power (kW) |
30 |
|
输入电压范围 Input Voltage Range (V) |
300-850 |
|
|
MPPT电压范围 MPPT Voltage Range (V) |
300-850 |
|
|
**大输入电流 Max. Input Current (A) |
50 |
|
|
MPPT数量 MPPT Quantity |
1 |
|
|
充电枪接口参数 |
电压范围 Voltage Range (V) |
200-1000 |
|
**大电流 Max. Current (A) |
250 + 250 |
|
|
额定功率 Rated Power (kW) |
210 + 210 |
|
|
工作模式 Operation Mode |
Supports GB2015 DC fast charging |
|
|
整机基本参数 |
工作温度范围 Operating Temp. (℃) |
-10 ~ +45 |
|
相对湿度 Relative Humidity |
0 ~ 90%, non-condensing |
|
|
**工作海拔 Max. Operating Altitude (m) |
2000 |
|
|
冷却方式 Cooling Mode |
Air cooling |
|
|
显示 Display |
Touch screen |
|
|
系统供电 System Power Supply |
AC220V (User-supplied) |
|
|
通讯方式 Communication |
RS485 |
|
|
防护等级 Protection Class |
IP54 |
|
|
重量 Weight (kg) |
N/A |
|
|
尺寸 (宽×深×高 mm) |
800 × 1000 × 2100 (Tentative) |
设备搬运说明 | Equipment Handling Instruction
机柜底座开有两个方形孔，搬运时叉车两根货叉通过方形孔叉入机柜底部，移动过程中需缓慢、平稳，避免设备磕碰倾倒。
Two square holes are reserved at the cabinet base. Insert two forklift forks through the square holes to the cabinet bottom during handling. Move slowly and steadily to prevent collision or tipping-over.
应用场景 | Application Scenarios
典型应用 | Typical Applications
? 园区光储充一体化充电站
? 新能源公交车、物流车直流快充场站
? 光伏就地消纳与绿电充电协同项目
? 分布式光伏 + 大功率直流快充综合项目
? 多车位、多枪大功率集中式充电系统
? PV-storage-charging integrated charging stations in industrial parks
? DC fast charging stations for new-energy buses & logistics vehicles
? Coordinated projects of on-site PV consumption & green-power charging
? Comprehensive projects of distributed PV + high-power DC fast charging
? Multi-bay, multi-gun high-power centralized charging systems
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定制说明：本系列产品支持定制开发，可根据现场工况调整功率、枪数、接口及运行逻辑，适配不同项目的建设需求。 Customization Note: Customization is available. Power rating, number of guns, ports and operation logic can be adjusted according to site conditions to meet various project requirements. |
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