基于模糊准比例谐振积分控制的储能变流器并网研究  

Research on Grid-connected Energy Storage Converter Based on Fuzzy Quasi-proportional Resonance Integral Control

作　　者：王继虎 梁喆[1] WANG Ji-hu;LIANG Zhe(College of Electrical and Information Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学电气与信息工程学院

出　　处：《辽宁工业大学学报（自然科学版）》2019年第5期295-299,共5页Journal of Liaoning University of Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(61873004)

摘　　要：针对储能变流器并网运行过程中准比例谐振控制的局限性,提出准比例谐振积分控制与模糊控制相结合的复合控制方法,储能变流器系统在两相静止坐标系下,准比例谐振环节可以无差跟踪基波正弦电流信号,积分控制抑制低频直流分量的干扰,降低输出电流谐波,模糊控制可根据误差大小和变化率对准比例谐振积分控制器的比例系数和带宽系数实时调整,克服参数固定时参考信号突变引起的跟踪误差问题。MATLAB/Simulink仿真结果表明,该控制策略可有效减少谐波,具备较好的动态和稳态性能。Aiming at the limitation of quasi-proportional resonance control in the operation of energy storage converters, a composite control method combining quasi-proportional resonance integral control and fuzzy control is proposed. The energy storage converter system is in two-phase stationary coordinate system. The proportional resonant link can track the fundamental sinusoidal current signal without difference, the integral control suppresses the interference of the low-frequency DC component, and reduces the output current harmonic. The fuzzy control can align the proportional coefficient and the bandwidth coefficient of the proportional resonance integral controller according to the error magnitude and the change rate adjusted to overcome the tracking error caused by the sudden change of the reference signal when the parameter is fixed. The simulation results of MATLAB/Simulink show that the control strategy can effectively reduce harmonics and have better dynamic and steady-state performance.

关 键 词：储能变流器 准比例谐振控制 无静差跟踪 模糊控制 积分控制 

分 类 号：TM464[电气工程—电器] TM921