The basic equipment of a distributed photovoltaic power generation system includes photovoltaic cell components, photovoltaic array brackets, DC combiner boxes, DC distribution cabinets, grid connected inverters, AC distribution cabinets, and other equipment. In addition, there are power supply system monitoring devices and environmental monitoring devices.

其運行模式是在有太陽輻射的條件下，光伏發電系統的太陽能電池組件陣列將太陽能轉換輸出的電能，經過直流匯流箱集中送入直流配電柜，由并網逆變器逆變成交流電供給建筑自身負載，多余或不足的電力通過聯接電網來調節。

Its operating mode is that under the condition of solar radiation, the solar cell module array of the photovoltaic power generation system converts the solar energy into output electricity, which is sent to the DC distribution cabinet through the DC combiner box. The current is inverted by the grid connected inverter to supply the building's own load, and the excess or insufficient electricity is adjusted by connecting to the grid.

分布式光伏電站系統的特點

Characteristics of Distributed Photovoltaic Power Plant Systems

1、系統相互獨立，可自行控制，避免發生大規模停電事故，安全性高；

1. The systems are independent of each other and can be controlled independently to avoid large-scale power outages, with high safety;

2、彌補大電網穩定性的不足，在意外發生時繼續供電，成為集中供電不可或缺的重要補充；

2. Compensating for the lack of stability in the large power grid and continuing to supply power in the event of accidents has become an indispensable and important supplement to centralized power supply;

3、可對區域電力的質量和性能進行實時監控，非常適合向農村、牧區、山區，發展中的大、中、小城市或商業區的居民供電，大大減小環保壓力；

3. It can monitor the quality and performance of regional electricity in real-time, making it very suitable for supplying power to residents in rural, pastoral, mountainous areas, developing large, medium, and small cities or commercial areas, greatly reducing environmental pressure;

4、輸配電損耗低，甚至沒有，無需建配電站，降低或避免附加的輸配電成本，土建和安裝成本低；

4. Low or even non-existent transmission and distribution losses, no need to build distribution stations, reducing or avoiding additional transmission and distribution costs, and low civil and installation costs;

5、調峰性能好，操作簡單；

5. Good peak shaving performance and simple operation;

6、由于參與運行的系統少，啟停快速，便于實現全自動。

6. Due to the limited number of systems involved in operation, the system starts and stops quickly, making it easy to achieve full automation.

分布式光伏發電系統應用范圍可在農村、牧區、山區，發展中的大、中、小城市或商業區附近建造，解決當地用戶用電需求。它是一種新型的、具有廣闊發展前景的發電和能源綜合利用方式，它倡導就近發電，就近并網，就近轉換，就近使用的原則，不僅能夠有效提高同等規模光伏電站的發電量，同時還有效解決了電力在升壓及長途運輸中的損耗問題。

The application scope of distributed photovoltaic power generation systems can be built in rural, pastoral, mountainous areas, developing large, medium, and small cities or commercial areas, to meet the electricity needs of local users. It is a new and promising method of power generation and energy comprehensive utilization. It advocates the principle of nearby power generation, grid connection, conversion, and use. It not only effectively increases the power generation of photovoltaic power plants of the same scale, but also solves the problem of power loss during boosting and long-distance transportation.

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