Command-filtered Backstepping Control for Single-phase NPC Rectifier

Chen Zhang, Bin Duan, Cheng Fu, Jinqiu Song, C. Zhang
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引用次数: 3

Abstract

Single-phase neutral point clamped rectifier (SP-NPCR) is getting much interest in 10 kV electric vehicle (EV) charging DC systems due to its low voltage stress on power switches. In order to achieve good tracking performance and anti-disturbance ability, a robust command-filtered backstepping control strategy of the SP-NPCR is proposed in this paper. Firstly, based on the SP-NPCR model in dq frame, the command-filtered backstepping controller is constructed, which compose of the output voltage controller and the reactive current controller. The command filter is used to meet the requirement of analytic differentiation of the virtual controller and simplify the controller structure. Then, the global stabilization of the SP-NPCR is conducted and proved by the Lyapunov stability theory. The simulation for SP-NPCR has been carried out to demonstrate that the proposed system has better dynamic property and robustness compared with the conventional proportional- Integral method.
单相NPC整流器的命令滤波反步控制
单相中性点箝位整流器(SP-NPCR)由于其对电源开关的低压应力,在10kv电动汽车(EV)充电直流系统中越来越受到关注。为了获得良好的跟踪性能和抗干扰能力,本文提出了一种鲁棒命令滤波SP-NPCR反步控制策略。首先,基于dq框架下的SP-NPCR模型,构造了由输出电压控制器和无功电流控制器组成的命令滤波反步控制器;命令滤波器用于满足虚拟控制器解析微分的要求,简化控制器结构。然后,利用Lyapunov稳定性理论证明了SP-NPCR的全局镇定性。对SP-NPCR进行了仿真,结果表明,与传统的比例积分方法相比,该方法具有更好的动态性能和鲁棒性。
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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