基于RMM的微网并网逆变器鲁棒补偿器设计

为了提高微电网并网逆变器控制系统的鲁棒性，针对微电网并网逆变器控制系统建模存在模型误差，以及系统工作过程中会受到实时干扰等不确定性因素的影响。通过对实验系统的输入输出信号进行采集，采用鲁棒模型匹配（RMM）的方法，结合典型的鲁棒控制的结构，在同步旋转dq坐标系下控制结构的基础上附加了一个鲁棒补偿器。将白噪声作为等效干扰，分别施加于原有控制结构和附加了鲁棒补偿器的控制结构中进行抗干扰能力仿真。仿真结果表明，附加鲁棒补偿器后，微网逆变器电流控制系统的抗干扰能力得到明显改善。即通过附加鲁棒补偿器的方式来提高系统的鲁棒性是可行的，有效的。

A robust compensator design for micro power grid inverter based on RMM

In order to improve the robustness of the micro power grid inverter control system. For the model errors during its modeling process and its working process is easily influenced by uncertainty factors such as real-time interference. Through the experiment system of input and output signal acquisition, adopting the method of robust model matching (RMM).Combined with the typical robust control structure, attaching a robust compensator on the basis of the synchronous rotating dq coordinate control structure. Regarding white noise as the equivalent disturbance, respectively applied to the original control structure and the attached robust compensator control structure. As the simulation results shows, after attaching the robust compensator, the anti-interference ability of the micro inverter current control system has improved significantly. That is to say, attaching a robust compensator to improve the robustness of the system is feasible and effective.