基于最优空间矢量的定频滞环控制

曾江 陈浩平 古智鹏 黄海颖

doi:10.3969/j.issn.1000-565X.2016.02.014

华南理工大学学报(自然科学版) >

2016 , Vol. 44 >Issue 2: 89 - 96,106

DOI: https://doi.org/10.3969/j.issn.1000-565X.2016.02.014

动力与电气工程

基于最优空间矢量的定频滞环控制

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华南理工大学电力学院，广东广州 510640

曾江(1972-) ，男，副教授，主要从事配电网自动化、电能质量分析与控制研究．

收稿日期: 2015-05-14

修回日期: 2015-10-21

网络出版日期: 2016-01-04

基金资助

国家自然科学基金资助项目( 51477055)

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Fixed-Frequency Hysteresis Control Based on Optimal Space Vector

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School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China

曾江(1972-) ，男，副教授，主要从事配电网自动化、电能质量分析与控制研究．

Received date: 2015-05-14

Revised date: 2015-10-21

Online published: 2016-01-04

Supported by

Supported by the National Natural Science Foundation of China( 51477055)

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摘要

提出了一种基于最优空间矢量的有源滤波器定频滞环电流控制方法．该方法通过前开关周期线性预测下周期滞环宽度，通过基准时钟信号进行开关相位调节，实现基于
最优空间矢量的SVPWM( 空间矢量脉宽调制) 不连续调制，而且采用两种SVPWM 不连续调制的切换控制，进一步减少电流误差．文中还运用PSCAD/EMTDC 电力暂态仿真软件进行仿真验证，证明了文中所提方法的有效性．

关键词： 有源滤波器; 最优空间矢量; 空间矢量脉宽调制; 滞环电流控制; 定频

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曾江陈浩平古智鹏黄海颖 . 基于最优空间矢量的定频滞环控制[J]. 华南理工大学学报(自然科学版), 2016 , 44(2) : 89 -96,106 . DOI: 10.3969/j.issn.1000-565X.2016.02.014

Abstract

Proposed in this paper is a novel hysteresis current control method based on the optimal space vector for active power filters with constant switching frequency.In this method,the hysteresis width of the next cycle is linearly predicted by the previous switching time,and the switching phase is aligned with a clock signal with fixed frequency,thus achieving the discontinuous SVPWM ( Space Vector Pulse Width Modulation) based on optimal space vector.Moreover,two kinds of discontinuous SVPWM modes are used alternately to further reduce the current error.The effectiveness of the proposed method is finally verified by means of PSCAD/EMTDC simulation.

Key words： active power filter; optimal space vector; space vector pulse width modulation; hysteresis current control; constant frequency

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