摘要
介绍了一种以蓄电池和超级电容作为储能装置的微网储能系统模糊控制策略。为了保证系统的稳定性,微网电压必须在突加负载作用下保持在一定的数值范围内。为了满足该要求,提出了基于并联双向DC/DC变换器的主电路结构。该电路在直流母线侧并联连接2个双向DC/DC变换器,且使用模糊控制策略对其进行控制。仿真结果表明,该主电路结构及控制策略能够有效地解决微网电压的稳定问题。
A fuzzy control strategy is introduced for micro grid energy storage system with accumulator and supercapacitor as energy storage device. When a sudden load is switched into the micro-grid, the voltage of the DC Bus should be maintained to ensure the system stability. To fulfill the requirement, main circuit configuration based on paralleled bi-directional DC/DC converters has been proposed. Two bi-directional DC/DC converters are paralleled at DC bus side, and fuzzy control strategy is adopted. Simulation results have proved that the proposed main circuit configuration ＆ control strategy can effectively ensure the stability of micro-grid.
作者
张祥
周博文
ZHANG Xiang;ZHOU Bowen(China Ship Development and Design Center, Wuhan 430064, China;College of Information Seienee ＆ Engineering, Northeastern University, Shenyang 110819, China)
出处
《智慧电力》
北大核心
2018年第4期16-21,共6页
Smart Power
基金
国家自然科学基金资助项目(61703081)~~
关键词
混合储能系统
微网
直流电压
模糊控制
hybrid energy storage system
micro-grid
DC voltage
fuzzy control
