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.

其运行模式是在有太阳辐射的条件下，光伏发电系统的太阳能电池组件阵列将太阳能转换输出的电能，经过直流汇流箱集中送入直流配电柜，由并网逆变器逆变成交流电供给建筑自身负载，多余或不足的电力通过联接电网来调节。

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.

分布式光伏电站系统的特点

Characteristics of Distributed Photovoltaic Power Plant Systems

1、系统相互独立，可自行控制，避免发生大规模停电事故，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、弥补大电网稳定性的不足，在意外发生时继续供电，成为集中供电不可或缺的重要补充；

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、可对区域电力的质量和性能进行实时监控，非常适合向农村、牧区、山区，发展中的大、中、小城市或商业区的居民供电，大大减小环保压力；

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、输配电损耗低，甚至没有，无需建配电站，降低或避免附加的输配电成本，土建和安装成本低；

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、调峰性能好，操作简单；

5. Good peak shaving performance and simple operation;

6、由于参与运行的系统少，启停快速，便于实现全自动。

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

分布式光伏发电系统应用范围可在农村、牧区、山区，发展中的大、中、小城市或商业区附近建造，解决当地用户用电需求。它是一种新型的、具有广阔发展前景的发电和能源综合利用方式，它倡导就近发电，就近并网，就近转换，就近使用的原则，不仅能够有效提高同等规模光伏电站的发电量，同时还有效解决了电力在升压及长途运输中的损耗问题。

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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