考虑最佳开关序列的三电平变换器非正交坐标系空间矢量调制简化算法

doi:10.19595/j.cnki.1000-6753.tces.L80101

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Abstract In three-level converter applications, the nonorthogonal frame space vector modulation method is widely used, because it is simpler than conventional orthogonal frame method. However, the implementation of optimal switching sequences based on look up table does not take advantage of the simplicity and intuitiveness of this method. Based on the unique symmetric property of nonorthogonal vector space, a new simple implementation process is proposed in this paper. This new method consists of only two steps of adjustment, and assures both the optimal switching sequences and the simplicity of nonorthogonal algorithm. The new method is verified by simulation and experiment in comparison with conventional orthogonal algorithm, and the results confirm that the same output waveform and harmonic performance are maintained.

Key words： Three level converters space vector modulation (SVM) nonorthogonal coordinate system optimal switching sequences

Received: 27 June 2018 Published: 29 July 2019

PACS:

TM921.3

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	Articles by authors
	Li Weiwei
	Zhang Xueguang
	Wan Zishen
	Zhao Yini
	Xu Dianguo

Cite this article:

Li Weiwei,Zhang Xueguang,Wan Zishen等. Simplified Implementation of Optimal Switching Sequences for Nonorthogonal Space Vector Modulation of Three Level Converter[J]. Transactions of China Electrotechnical Society, 2019, 34(zk1): 181-188.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L80101 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/Izk1/181

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