一种通用的多电平逆变器三维空间矢量

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Abstract The proposed three-dimensional (3D) space-vector modulation (SVM) algorithm maps switching state vectors in 3D space coordinates directly.Every basic vector only matches a switching state vector.And without redundancy phenomenon.Firstly,the location of a unit cube which includes the reference voltage vector is fixed.Secondly,in the unit cube,four basic vectors which synthesize the reference vector are confirmed.The dwelling times of the basic vectors are calculated according to volt-second balance principle.Finally,switching among the four basic vectors is implemented by seven-segment modulation algorithm.Coordinate transformation is not required in this proposed algorithm.Reference vector location is fixed simply.The proposed algorithm is also independent of the level number of the inverter.The correctness and feasibility of this proposed algorithm are verified by the simulation and experimental results of a three-cell seven-level inverter.

Key words： Multilevel inverter space vector modulation (SVM) zero order voltage switching path

Received: 12 May 2015 Published: 21 November 2016

PACS:

TM464

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	Articles by authors
	Wang Cui
	Tang Xiongmin
	Feng Qiangjian
	Chen Sizhe
	Zhang Yun

Cite this article:

Wang Cui,Tang Xiongmin,Feng Qiangjian等. A Generalized Three-Dimensional Space-Vector Modulation Algorithm for Multilevel Converters[J]. Transactions of China Electrotechnical Society, 2016, 31(21): 125-132.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I21/125

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