太阳能光伏发电系统设计的文档PDF，太阳能光伏逆变网络、太阳能独立光伏发电系统硕士论文-The current situation of photovoltaic systems (PV systems) is introduced at first,

and then basic concepts, theories, and components of PV systems are discussed in this

paper. Key technology of PV system is checked, especially methods of battery

monitoring are explored. Three monitoring methods of charging state are presented:

the method based on battery on-line voltage monitoring, the method based on battery

off line voltage monitoring and the method based on formulas. The functions which

PV system controllers need to have are discussed in theory too, such as controlling of