基于FCS-MPC的电能质量综合调节器补偿策略研究

Power Quality Integrated Regulator Compensation Strategy Based on FCS-MPC

为提高统一电能质量调节器(unified power quality conditioner,UPQC)对电能质量扰动的补偿精度和响应速度,将有限状态模型预测控制(finite control set model predictive control,FCS?MPC)算法引入到电网侧和负载侧控制器中,通过对补偿量检测环节进行改进,构建预测模型,价值函数以及滚动优化方法,设计了一种基于FCS?MPC算法的UPQC电能质量扰动补偿策略,降低了算法的复杂度和参数调试的繁琐性,有效提高了控制算法的补偿精度和响应速度。该文应用MATLAB/Simulink仿真环境构建仿真模型与控制算法,分别针对电压暂降/暂升补偿、谐波补偿、非线性电流补偿、无功功率补偿、负序分量补偿进行了仿真分析,实验结果验证了所设计方法的正确性和可行性。

In order to improve the compensation accuracy and response speed of Unified Power Quality Conditioner(UPQC)for power quality disturbance,the Finite Control Set Model Predictive Control(FCS-MPC)algorithm is introduced into the power-grid side and load side controller.By improving the compensation part,constructing predictive model,value function and rolling optimization method,a UPQC power quality disturbance compensation strategy is designed;it can reduce the complexity of algorithm and the parameter testing,and effectively improves the control algorithm compensation accuracy and response speed.In this paper,the simulation model and control algorithm are built based on MATLAB/Simulink,and the simulation analysis is carried out for compensation of voltage sag/swell,harmonic,nonlinear current and reactive power,the results verify the correctness and feasibility of design method.