摘要
针对孤岛运行的直流微电网中负荷波动性,建立了基于异步电机的飞轮储能系统装置,并在此基础上,提出了一种基于双向功率变流器频率控制的飞轮储能方法。利用李雅普洛夫稳定判据判断了该频率控制器的稳定性,同时Matlab/Simulink仿真结果显示,在周期性急剧变化的负荷作用下,双向变流器能按控制要求工作在整流或者逆变器模式,使含有异步电机的飞轮储能系统跟踪负荷变化完成充放电过程,从而提高独立电源系统的稳定性和过载能力。
According to the load volatility of DC microgrid running in island mode, a flywheel energy storage system based on asynchronous motor was established,and a new flywheel energy storage method was advanced based on the bidirectional converter frequency control. Lyapunov＇s stability criterion was used to judge the stability of the frequency controller. The Matlab/Simulink simulation results show that under the action of periodic and sharply changing load, the bidirectional converter can work in the rectifier or inverter mode according to the requirements of control, making the flywheel energy storage system track the load changing and complete charge and discharge process to improve the stability and the overload capacity of the independent power supply system.
出处
《电源技术》
CAS
CSCD
北大核心
2016年第4期836-839,共4页
Chinese Journal of Power Sources
基金
国家重点基础研究发展计划基金项目(2012CB215200)
四川省教育厅自然科学项目(13ZA0096)
四川省科技支撑项目(2014GZ0069)
关键词
直流微电网
孤岛运行
飞轮储能系统
双向功率变流器
频率控制
DC microgrid
islanding model operation
flywheel energy storage system
bidirectional converter
frequency control
