微电网中超级电容器储能系统的仿真研究

Simulation study on super capacitor energy storage system in microgrid

超级电容器作为一种高功率型储能装置,其在微电网中是提高电能质量的重要组成部分。设计了微电网中超级电容器储能系统,在此基础上重点阐述了双向DC/DC变换器的拓扑结构、工作原理以及双重移相脉冲下电压外环电流内环的双闭环控制策略。最后在Simulink/MATLAB平台实验验证了在该控制策略下储能系统能够很好的维持直流侧母线电压和网侧电流的稳定性。

As a kind of high power type energy storage device,supercapacitor is an important part of improving the power quality in microgrid.In this paper,the topology,working principle and double closed loop control strategy of double phase DC/DC converter inner voltage loop under double phase shifted pulse are discussed.Finally,the simulation results on Simulink/MATLAB show that the energy storage system can maintain the stability of DC bus voltage and grid side current under the control strategy.