低开关频率下基于直接自控制的谐波抑制方法

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摘要提出一种双折角调制三十边形磁链轨迹直接自控制方法, 它通过增加折角以及选择合适的定子磁链轨迹, 减小定子电流和磁链的主要低次谐波。理论和实验结果表明, 相比较于传统十八边形磁链轨迹直接转矩控制, 所提出的控制方法保持经典直接自控制简洁优点的同时, 它使得该方式下的定子电流和磁链的谐波含量进一步减小, 控制性能得以改善。

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	廖永衡
	冯晓云
	王珍

关键词 ：直接自控制, 双折角, 定子磁链轨迹, 低次谐波, 理论和实验

Abstract：A novel direct self control (DSC) strategy of 30-angular flux trace based on double fold corner modulation is proposed in this paper, which reduce all low dominating harmonics of the stator current and flux. This is achieved by increasing the stator flux corner and choose appropriate flux trajectory. The theoretical and experimental results show that the proposed method retains the advantages of concise in classic DSC and further reduce the dominating distortion in comparison to 18-corner DSC and improves the control performance.

Key words： Direct self control double fold corner stator flux trajectory low harmonics theoretical and experimental

收稿日期: 2010-08-15 出版日期: 2014-03-20

PACS:

TM343.3

作者简介: 廖永衡男, 1982年生, 博士研究生, 研究方向为电力机车牵引交流传动控制。冯晓云女, 1962年生, 教授, 博士生导师, 研究方向为列车自动控制与无人驾驶, 电力机车牵引交流传动控制。

引用本文:

廖永衡, 冯晓云, 王珍. 低开关频率下基于直接自控制的谐波抑制方法[J]. 电工技术学报, 2012, 27(8): 126-132. Liao Yongheng, Feng Xiaoyun, Wang Zhen. Research on Harmonic Elimination in Low Switching Frequency Based on Direct Self Control. Transactions of China Electrotechnical Society, 2012, 27(8): 126-132.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I8/126

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