针对光储微电网并网稳定问题提出了一种有限集模型预测控制（FCS-MPC）方案。储能系统双向DC/DC变换器采用电压电流双环控制，以稳定直流母线电压。建立并网逆变器离散化数学模型，将逆变器输出电流作为成本函数控制量，构建电流预测控制器。逆变器电流采用前2步预测,并使用矢量角补偿法对控制过程进行延时补偿。利用MATLAB/Simulink搭建光伏储能微电网仿真模型，对比分析传统控制和模型预测控制的电压电流响应。结果显示,所提方案在负载变化和光伏功率波动情况下，能提高直流母线电压稳定性，减小并网电流畸变率。

A scheme of finite control set model predictive control (FCS-MPC) is proposed for the grid-connected stability of photovoltaic and storage microgrid. The bi-directional DC/DC converter of the energy storage system adopts voltage and current dual-loop control to stabilize the DC bus voltage. Then, the discrete mathematical model of the grid-connected inverter is established, and the output current of inverter is used as the cost function control variable to construct current predictive controller. Based on the prediction of the next two steps of inverter current, the vector angle compensation method is introduced to compensate for the delay of the control process. Finally, the simulation model of photovoltaic and storage microgrid is established by using MATLAB/Simulink, and the voltage and current responses under traditional method and MPC are compared and analyzed. Simulation results show that the proposed scheme can improve the DC bus voltage stability and reduce the grid-connected current distortion rate under load changes and photovoltaic power fluctuations.