基于同步旋转坐标系的有源电力滤波器控制延时动态预测补偿策略

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摘要提出一种基于同步旋转坐标系（SRF）的有源电力滤波器（APF）控制延时动态预测补偿策略。该方法通过对各次SRF的相移控制,实现对APF各次谐波电流控制延时的补偿;同时,根据微变线性化原理,对SRF上暂态变化的同步谐波电流进行线性预测,从而实现对各次谐波电流控制延时的动态预测补偿。首先详细分析了APF控制延时的形成机理、对系统的影响以及延时抑制方法,在此基础上,重点论述所提控制延时动态预测补偿方法,并对基于该方法的APF控制系统进行分析设计。理论分析和实验结果表明,该方法能够实时响应负载暂态变化,精确补偿控制延时,有效提高谐波电流补偿的准确度。

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关键词 ：有源电力滤波器, 控制延时, 同步旋转坐标系相移控制, 线性预测补偿

Abstract：This paper proposes a dynamic predictive compensation strategy for the time delay of active power filter (APF) control system based on synchronous rotating frame (SRF). By means of phase-shift control on each SRF, this method realizes the time-delay compensation for each order harmonic current control. Moreover, on the basis of the linear control theory, the linearized predictive compensation is adopted for the synchronous transient harmonic currents of the SRF. Firstly, regarding the time delay in APF control, the formation mechanism, the influences on the control system and the relative suppression method are analyzed in detail. Secondly, the proposed time delay compensation strategy is discussed, accordingly the APF control system is designed. The theoretical and experimental results show that, thanks to this strategy, the APF can response the transient harmonic currents in realtime, compensate the time delay accurately, and improve the compensation accuracy of harmonic currents effectively.

Key words： Active power filter time delay synchronous rotating frame phase-shift control linearized predictive compensation

收稿日期: 2014-05-05 出版日期: 2016-07-12

PACS:

TM46

基金资助:中国博士后科学基金（2016M591739）,江苏省高校自然科学研究项目（14KJB470008）和江苏省产学研联合创新资金前瞻性联合研究项目（BY2014127-15）资助

通讯作者: 费树岷男,1961年生,教授,博士生导师,研究方向为非线性控制、模式识别等。E-mail: smfei@seu.edu.cn

作者简介: 许胜男,1976年生,博士,副教授,研究方向为电力电子技术在电力系统中的应用。E-mail: xush_00@sina.com

引用本文:

许, 胜, 费树岷, 赵剑锋, 黄允凯. 基于同步旋转坐标系的有源电力滤波器控制延时动态预测补偿策略[J]. 电工技术学报, 2016, 31(12): 161-169. Xu Sheng, Fei Shumin, Zhao Jianfeng, Huang Yunkai. The Dynamic Predictive Compensation Strategy for the Time Delay of Active Power Filter Control System Based on Synchronous Rotating Frame. Transactions of China Electrotechnical Society, 2016, 31(12): 161-169.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I12/161

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