基于混合储能荷电状态的微源并网平滑控制

Micro-Source Grid-Connected Smooth Control Based on State of Charge of Hybrid Energy Storage

超级电容与蓄电池构成柔性储能系统,蓄电池可以维持能量的供需平衡,提供较高的能量,而超级电容可抑制功率波动的高频分量,维持系统短时间功率平衡。在分布式电源并网系统中,通过动态改变混合储能系统的荷电状态对电容和蓄电池进行控制,实现微源并网功率平滑控制。

Ultracapacitors and batteries constitute a flexible energy storage system.The battery can maintain the balance between supply and demand of energy and provide high energy,while the ultracapacitors can suppress the high-frequency components of power fluctuation and maintain the power balance of the system in a short time.In the distributed power grid-connected system,the capacitor and battery are controlled by dynamically changing the state of charge of the hybrid energy storage system to realize the smooth control of micro-source grid-connected power.