说明：  主要讲述太阳能光伏系统的组成结构和工作原理，并结合实例讲述光伏系统 的常见类型、一般设计原理和方法、光伏系统的测试以及性能分析，并描述了太阳能 光伏系统的发展趋势
(Focuses on solar photovoltaic system structure and working principle, combined with examples about photovoltaic systems Common types, general design principles and methods of testing and photovoltaic systems performance analysis, and describes the solar The development trend of photovoltaic systems)