PWM整流器电压快速响应的模糊自整定控制策略

2022 International Conference on Artificial Intelligence and Computer Information Technology (AICIT) Pub Date : 2022-09-16 DOI:10.1109/AICIT55386.2022.9930198

Zixin Huang, Wei Wang, Jie Deng, Yingying Li, Lejun Wang, Zicheng Li

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引用次数: 0

摘要

针对直流侧三相电压型脉宽调制(PWM)整流器传统双闭环控制系统的电压响应率问题。本文基于欠驱动系统理论，对PWM整流器直流电压控制过程进行了理论研究。建立了旋转坐标系下PWM整流器的数学模型，分析了其欠驱动特性，提出了串级双闭环控制结构。采用部分反馈线性化策略设计了电流内环控制器。为了提高直流侧电压响应速度，提出了电压外环的模糊控制方法。本文设计的PWM整流器控制系统具有较好的稳态和动态性能，较好地提高了直流侧电压响应率。仿真结果证明了所设计控制方案的有效性。

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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Fuzzy self-tuning control strategy for PWM rectifier voltage fast response

Aiming at the voltage response rate of the traditional dual closed-loop control system of the three-phase voltage type pulse width modulation(PWM) rectifier on the direct current(DC) side. In this paper, Based on the underactuated system theory, the DC voltage control process of PWM rectifier is studied theoretically. The mathematical model of PWM rectifier in rotating coordinate system is established, and its underactuated characteristics are analyzed, a cascade double closed loop control structure is proposed. A current inner loop controller is designed using partial feedback linearization strategy. In order to improve the DC side voltage response speed, the fuzzy control of voltage outer loop is proposed. The PWM rectifier c ontrol system designed in this paper has better steady-state and dynamic performance, better improve the DC side voltage response rate. The simulation results prove the effectiveness of the designed control scheme.

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2022 International Conference on Artificial Intelligence and Computer Information Technology (AICIT)

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