单相五电平脉冲整流器滑模比例积分谐振控制

以基于耦合电感的新型单相五电平脉冲宽度调制（PWM）整流器为研究对象，为了提升系统动态响应、维持单位功率因数、减少网侧电流谐波含量，提出滑模比例积分谐振（PIR）控制算法. 通过对新型单相五电平PWM整流器的电路拓扑和工作原理分析，构建整流器d-q同步旋转坐标系下的数学模型，推导整流器电压外环滑模和电流内环PIR控制算法，给出具体设计过程. 与d-q坐标系传统比例积分（PI）电流控制算法相比，所提滑模PIR控制算法动态响应速度更快，网侧电流谐波含量更低. 搭建基于MATLAB/Simulink的仿真模型和基于RT-lab的半实物实时仿真平台，对滑模PIR控制算法与d-q坐标系传统PI电流控制算法分别进行计算机仿真和半实物实验对比研究，仿真和实验结果验证了所提滑模PIR控制算法的正确性和可行性.

Sliding mode proportional integral resonance control for single-phase five-level pulse rectifier

A novel single-phase five-level pulse width modulation (PWM) rectifier based on coupled inductor was presented. A sliding mode proportional integral resonance (PIR) control algorithm was proposed to improve the dynamic response of the system, maintain unity power factor and reduce the current harmonic content of the grid side. The circuit topology and working principle of the new single-phase five-level PWM rectifier were analyzed. A mathematical model of the rectifier in the d-q axis synchronous rotating reference frame were constructed. The voltage outer loop sliding-mode and current inner loop PIR control algorithm were derived, and the specific design process was given. Compared with the traditional proportional integral (PI) current control algorithm in the d-q coordinate system, the proposed sliding mode PIR control algorithm has a faster dynamic response speed and a lower current harmonic content on the grid side. A simulation model based on MATLAB/Simulink and a hardware-in-the-loop real-time simulation experiment platform based on RT-lab were built. The sliding mode PIR and traditional PI current control algorithm in the d-q coordinate system were compared and verified in computer simulation and hardware-in-loop experimental test. Simulation and experimental results verify the correctness and feasibility of the proposed algorithm.