摘要
研究了一种分布式的光伏并/离网储能发电系统,包括连接光伏阵列和直流环节的升压DC/DC变换器、连接直流环节和负载的全桥逆变器以及连接蓄电池和直流环节的双向双有源DC/DC变换器。能够判断光伏阵列、本地负载和蓄电池等的状态,实现并网、离网、储能等多种工作模式。
The power fluctuation is the main feature of a pure grid connecting solar system due to the irradiance and temperature. This paper researched on a solar storage system with grid connecting and off grid operating modes. The system includes the boost converter connecting solar panel and the DC link,the full bridge inverter connecting the grid or load with the DC link,and the bi-directional DC / DC converter linking the battery and the DC link. The system can operate in multiple modes judging the conditions including the solar panel,local load and the battery and so on. Comparing with the conventional solar grid-connected system,the distributed grid connecting and islanding operating solar storage system is more suitable to the irradiance and the load condition fluctuation utilizing the storage battery charging and discharging function.
出处
《电器与能效管理技术》
2016年第19期73-77,共5页
Electrical & Energy Management Technology
基金
国家自然科学基金资助项目(51577118)
关键词
光伏
并/离网
蓄电池
双向
solar system
on and off system
storage battery
bi-directional DC/DC
