光储一体机项目应用案例
Integrated PV Energy Storage All in One Unit Project Case
项目简介 | Project Introduction
本光储一体机设备集成光伏接入、储能充放电、并网离网变流控制于一体，适配分布式新能源场景应用。设备依托成熟大功率电力电子技术，具备大功率双向变换能力，拥有大量锂电、超级电容充放电控制实践经验，可实现光伏能量利用、储能调峰、离网黑启动、多模式运行，满足自发自用、余电上网、零碳运行等多样化用能需求，系统整体性能稳定、保护机制完善，适用于多种工商业及新能源应用场景。
This integrated PV-energy storage all-in-one unit integrates PV access, energy-storage charge-discharge, grid-tied/off-grid converter control, and is suitable for distributed new-energy scenarios. Adopting mature high-power power-electronic technology with high-power bidirectional conversion capability, it has rich practical experience in lithium-ion battery and super-capacitor charge-discharge control. It realizes PV energy utilization, energy-storage peak-shaving, off-grid black-start and multi-mode operation, meeting diverse energy demands such as self-consumption, surplus-power grid-feeding and zero-carbon operation. Featuring stable overall performance and comprehensive protection mechanisms, it applies to various commercial, industrial and new-energy scenarios.
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、电力电缆设计、储能电池管理、安全防护等全套规范，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, battery-management and safety protection. Partial IEC international standards are also adopted to ensure safe and reliable equipment operation.
系统拓扑说明 | System Topology Description
|
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、功能触摸操作；配置1路RS485通讯接口，可实现遥控、遥测、遥调远程功能。
系统由光伏DCDC变换单元、储能DCDC变换单元、直流公共母线、PCS变流单元组成；光伏经DCDC接入直流母线，储能经双向DCDC接入直流母线，直流母线连接PCS；PCS同时对接电网侧与本地交流负载侧，实现光伏、储能、电网、负载四者之间的能量交互。
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 consists of PV DC-DC converter unit, energy-storage DC-DC converter unit, common DC bus and PCS unit. PV connects to DC bus via DC-DC converter; energy storage connects to DC bus via bidirectional DC-DC converter; DC bus is linked to PCS. PCS interfaces with both utility grid and local AC loads, realizing energy interaction among PV, energy storage, grid and loads.
完整全套参数表 | Complete Parameter Tables
表1 30kW光伏DCDC单元电气参数 | Table 1 Electrical Parameters of 30kW PV DC-DC Unit
|
序号 No. |
电气类目 Category |
详细类目 Item |
规格 Specification |
|
1 |
直流电压 DC Voltage |
光伏侧直流电压 PV-side DC Voltage |
200-900Vdc (Open-circuit voltage) |
|
|
|
母线侧直流电压 Bus-side DC Voltage |
Rated: 900Vdc |
|
2 |
直流电流 DC Current |
光伏侧直流电流 PV-side DC Current |
≤120A |
|
|
|
母线侧直流电流 Bus-side DC Current |
≤34A |
|
3 |
转换效率 Conversion Efficiency |
High-voltage 750V, Low-voltage 600V |
98% (Obtained under lab conditions) |
|
4 |
额定功率 Rated Power |
|
30kW |
|
5 |
工作模式 Operation Mode |
MPPT |
Configurable, auto-switch between MPPT & constant-voltage |
|
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 |
RS485, fully isolated |
Modbus RTU protocol |
|
|
|
CAN2.0A/B, fully isolated |
Up to 1M/S |
|
9 |
供电方式 Power Supply |
220Vac |
220Vac |
|
10 |
设置方式 Configuration |
|
Via PC or upper computer by communication |
|
11 |
保护 Protection |
- |
HV/LV side over-voltage & under-voltage protection, over-current, over-temperature, communication fault protection; auto-recovery after fault clearance |
|
12 |
尺寸 Dimension |
L×W×H |
600mm × 363mm × 154mm (excluding terminal block) |
|
13 |
重量 Weight |
|
21kg |
|
14 |
操作方式 Control Mode |
|
Auto or communication-based control |
|
15 |
散热方式 Cooling |
|
Air cooling |
表2 60kW储能DCDC单元电气参数 | Table 2 Electrical Parameters of 60kW Energy-Storage DC-DC Unit
|
序号 No. |
电气类目 Category |
详细类目 Item |
规格 Specification |
|
1 |
直流电压 DC Voltage |
储能侧直流电压 ESS-side DC Voltage |
≤850Vdc |
|
|
|
母线侧直流电压 Bus-side DC Voltage |
Rated: 900Vdc |
|
2 |
直流电流 DC Current |
储能侧直流电流 ESS-side DC Current |
≤120A |
|
|
|
母线侧直流电流 Bus-side DC Current |
≤67A |
|
3 |
转换效率 Conversion Efficiency |
High-voltage 750V, Low-voltage 600V |
98% (Obtained under lab conditions) |
|
4 |
额定功率 Rated Power |
|
60kW |
|
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 |
RS485, fully isolated |
Modbus RTU protocol |
|
|
|
CAN2.0A/B, fully isolated |
Up to 1M/S |
|
9 |
供电方式 Power Supply |
220Vac |
220Vac |
|
10 |
设置方式 Configuration |
|
Via PC or upper computer by communication |
|
11 |
保护 Protection |
- |
HV/LV side over-voltage & under-voltage protection, over-current, over-temperature, communication fault protection; auto-recovery after fault clearance |
|
12 |
尺寸 Dimension |
L×W×H |
600mm × 543mm × 154mm (excluding terminal block) |
|
13 |
重量 Weight |
|
55kg |
|
14 |
操作方式 Control Mode |
|
Auto or communication-based control |
|
15 |
散热方式 Cooling |
|
Air cooling |
表3 125kW PCS单元电气参数 | Table 3 Electrical Parameters of 125kW PCS Unit
|
分类 Category |
项目 Item |
参数 Parameter |
|
直流侧参数
DC-side Parameters
|
电压范围 Voltage Range |
615-950V (3W+PE) / 650-950V (3W+N+PE) |
|
**大输出功率 Max. Output Power |
125kW |
|
|
**大输出电流 Max. Output Current |
203A |
|
|
交流并网参数
AC Grid-tied Parameters
|
输出线制 Output Wiring |
3-phase 3-wire (3W+PE) / 3-phase 4-wire (3W+N+PE) |
|
额定功率 Rated Power |
125kW |
|
|
额定电压 Rated Voltage |
AC400V |
|
|
额定电流 Rated Current |
200A |
|
|
电压范围 Voltage Range |
-15% ~ +15% |
|
|
额定频率 Rated Frequency |
50Hz |
|
|
功率因数 Power Factor |
1 lead ~ 1 lag (configurable) |
|
|
THDi |
≤3% (at rated power) |
|
|
环境参数
Environmental Parameters
|
工作温度 Operating Temp. |
-20℃ ~ 50℃ (derating above 45℃) |
|
相对湿度 Relative Humidity |
0%RH ~ 95%RH, non-condensing |
|
|
工作海拔 Operating Altitude |
4000m, derating for 2000~4000m |
|
|
通信及机械
Communication & Mechanical
|
通信接口 Comm. Port |
RS485, CAN |
|
防护等级 Protection Class |
IP20 |
|
|
冷却方式 Cooling Mode |
Intelligent forced air cooling |
|
|
机柜尺寸 (W×D×H, mm) |
500 × 670 × 255 |
|
|
重量 Weight |
50 kg |
表4 整机规格参数 | Table 4 Complete Unit Specifications
|
模块 Module |
项目 Item |
参数 Parameter |
|
光伏1-4接口参数 |
**大输入功率 Max. Input Power (kW) |
30 |
|
**大输入电压 Max. Input Voltage (V) |
900 (Open-circuit voltage) |
|
|
MPPT电压范围 MPPT Voltage Range (V) |
200-900 |
|
|
**大输入电流 Max. Input Current (A) |
120 |
|
|
MPPT数量 MPPT Quantity |
1 |
|
|
储能1-2接口参数 |
电池电压范围 Battery Voltage Range (V) |
≤850 |
|
**大电流 Max. Current (A) |
120 |
|
|
额定功率 Rated Power (kW) |
60 |
|
|
电网接口参数 |
输出线制 Output Wiring |
3W+PE |
|
额定功率 Rated Power |
125kW |
|
|
额定电压 Rated Voltage |
AC400V |
|
|
**大电流 Max. Current |
200A |
|
|
电压范围 Voltage Range |
340-460Vac |
|
|
额定频率 Rated Frequency |
50Hz |
|
|
功率因数 Power Factor |
-0.9 ~ 0.9 |
|
|
输出谐波 THDi |
≤3% (at rated power) |
|
|
隔离 Isolation |
With external isolation transformer |
|
|
交流负载接口参数 |
输出线制 Output Wiring |
3W+N |
|
额定功率 Rated Power |
125kW |
|
|
额定电压 Rated Voltage |
AC400V |
|
|
**大电流 Max. Current |
200A |
|
|
额定频率 Rated Frequency |
50Hz |
|
|
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 (Modbus RTU) / Ethernet (Modbus TCP) |
|
|
防护等级 Protection Class |
IP54 |
|
|
尺寸 (宽×深×高 mm) |
1000 × 1000 × 2300 (Tentative) |
|
|
重量 Weight (kg) |
N/A |
核心运行控制策略 | Core Operation & Control Strategy
1. 黑启动功能
系统具备全黑启动能力，在电网完全断电状态，无需依赖外部市电，依靠内部光伏、储能资源自主完成启动，直接对外输出供电，保障关键负载不间断用电。
2. 光伏储能优先模式
优先调用光伏、储能能量供给本地交流负载；产生多余电能可向电网输送；当光伏+储能能量不足以满足负载需求时，自动引入电网补充供电。
3. 零碳运行模式
光伏与储能全部优先供给本地负载，富余电能不向电网输出；当新能源出力不足时，由电网补足负载缺口，**大化消纳本地清洁能源。
1. Black-Start Function
The unit supports black-start. Under complete grid blackout condition, it can self-start relying on internal PV and energy-storage resources without external mains power, to supply power for critical loads and guarantee uninterrupted power supply.
2. PV-ESS Priority Mode
PV and energy-storage energy are consumed by local AC loads with priority. Surplus power can be fed to grid. When PV plus ESS output cannot satisfy load demand, utility grid will automatically supplement power.
3. Zero-Carbon Mode
PV and energy-storage supply local loads with priority, surplus power is forbidden to feed grid. When new-energy output is insufficient, grid will compensate power shortage to maximize local clean-energy consumption.
设备搬运说明 | Equipment Handling Instruction
机柜底座预留专用叉车孔位，搬运时叉车货叉对准底部方形孔位叉入，全程移动需缓慢平稳，避免设备磕碰倾倒。
Special forklift holes are reserved at cabinet base. Insert forklift forks into square holes during handling. Move slowly and steadily to prevent collision or tipping-over.
应用场景 | Application Scenarios
|
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、接口、运行逻辑，适配不同项目的建设需求。 |
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Customization Note: Customization is available. Power rating, ports and operation logic can be adjusted according to site conditions to meet various project requirements. |
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