基于滑模变结构与内模控制相结合的VIENNA整流器控制策略研究

Research on control strategy of VIENNA rectifier based on sliding mode variable structure and IMC

针对VIENNA整流器需直流侧电压稳定且具有良好的动态性能和鲁棒性,提出一种基于内模控制和滑模变结构控制相结合的VIENNA整流器新型非线性控制策略。依据主电路拓扑建立VIENNA整流器的数学模型并设计了基于内模理论和滑模变结构理论的VIENNA整流器控制器。对此进行了仿真和实验验证,仿真和实验结果表明该控制策略能有效达到控制目的,具有鲁棒性强、动态响应速度快、有较强的抗干扰能力等特点。

For the VIENNA rectifier,the DC side voltage is required to be stable and have good dynamic performance and robustness.A novel nonlinear control strategy for VIENNA rectifier based on IMC and sliding mode variable structure control is proposed.According to the main circuit topology,the mathematical model of VIENNA rectifier is established and a VIENNA rectifier controller based on internal model theory and sliding mode variable structure theory is designed.The simulation and experimental verification are carried out in this paper,the simulation and experimental results show that the control strategy can achieve the purpose of control effectively,and has the characteristics of robust,fast dynamic response,strong anti-interference ability and so on.