FCS-MPC在HAPF无功补偿控制中抑制谐振的研究

针对有源滤波器(APF)在无功补偿过程出现谐振的问题,为提高动态无功补偿中使用的控制算法的动态响应能力,提出一种新的基于有限控制集模型预测控制(FCS-MPC)的动态无功补偿策略。该策略是基于LCL滤波器方程的模型来预测系统状态并优化控制,同时采用多变量结构控制和自适应陷波滤波器来抑制共振,跟踪负载无功功率的波动和突变,提升HAPF的动态响应能力。并通过仿真和实际结果证明了FCS-MPC在HAPF无功控制中的可行性,设备的动态响应明显提高。结果表明,FCS-MPC在HAPF无功控制中可以快速跟踪负载无功功率变化,有效抑制APF中出现的谐振且系统的动态响应能力明显提升。

Suppressing Resonance of FCS-MPC in Reactive Power Compensation Control of HAPF

Aiming at the resonance of active power filter(APF) in reactive power compensation process,a new dynamic reactive power compensation strategy based on finite control set model predictive control (FCS-MPC) is proposed to improve the dynamic response ability of the control algorithm used in dynamic reactive power compensation.The strategy is based on the model of LCL-filter equation to predict system state and optimize control.At the same time,multivariable structure control and adaptive notch filter are used to suppress resonance,track the fluctuation and mutation of load reactive power,improve the dynamic response ability of HAPF.The simulation and practical results show the feasibility of FCS-MPC in HAPF reactive power control,and the dynamic response of the equipment is improved obviously.The results show that FCS-MPC can quickly track the change of load reactive power in HAPF reactive power control,effectively suppress the resonance in APF and improve the dynamic response ability of the system.