Robust Backstepping Direct Power Control of Vienna Rectifier based on Sliding-Mode Theory

Ouyang Gang, Caixue Chen, Zhaohong Wang, Zhigang Xiong, Xuanhui Peng
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Abstract

This article mainly elaborates the design of backstepping direct power controller of three-level T -type Vienna rectifier based on space vector modulation (SVM). Aiming at the problems of load fluctuation and parameter's uncertainties during operation of T -type Vienna rectifier, the sliding-mode controller and backstepping method are combined to design two state feedback controllers related to active power and reactive power. Parameters of the two coupling controllers can be designed independently according to the actual situation. The excellent dynamic performance and robustness of proposed method are proved compared with proportional-integral control (PIC) through SIMULINK software; current distortion during zero-crossing point of the Vienna rectifier is also suppressed by reactive power compensation.
基于滑模理论的维也纳整流器鲁棒反步直接功率控制
本文主要阐述了基于空间矢量调制(SVM)的三电平T型维也纳整流器反步直接功率控制器的设计。针对T型维也纳整流器运行中存在的负荷波动和参数不确定性问题,将滑模控制器与反步法相结合,设计了与有功功率和无功功率相关的两个状态反馈控制器。两个耦合控制器的参数可根据实际情况独立设计。通过SIMULINK软件与比例积分控制(PIC)进行比较,证明了该方法具有良好的动态性能和鲁棒性;维也纳整流器过零点时的电流畸变也通过无功补偿得到抑制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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