光伏并网发电/独立供电系统的工作原理探究

Probe into the Principle of Work of Grid-connected Electricity Generation and the Independent Power Supply System

光伏并网发电系统与光伏独立供电系统是光伏系统技术中的重要应用领域,适于不同的应用场合,两者的有效结合即是将并网发电功能与独立逆变供电功能集于一体,可以进一步拓展其应用范围并简化结构和减少投资。分析光伏并网发电/独立供电系统的工作原理,根据太阳电池的最大功率点跟踪技术,采用电网SPWM整流充电方式实现对蓄电池进行合理的充电控制。

The system of photovoltaic grid and photovoltaic power generation and the independent photovoltaic power system is an important technology in the application field, which is suitable for different applications. The effective integration of the two functions can further expand its scope of application and simplify the structure and reduce investment. This paper analyzes the principle of work of the grid - connected electricity generation and the independent power supply system, and uses grid SPWM rectifier rechargeable battery means to achieve reasonable charge control,according to the solar maximum power point tracking technology.