非正交三维坐标系下多电平空间矢量调制策略

doi:10.19595/j.cnki.1000-6753.tces.160573

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Abstract Pulse width modulations is a key technology in three-phase four-wire multi-level converter controlling. It directly affects the controlling performance of output zero-sequence voltage component. Traditional three-dimensional space vector modulation strategies have difficulties in achieving a good balance between voltage zero-sequence component controlling and algorithm complexity. A novel space vector modulation strategy in non-orthogonal three-dimensional coordinate system is proposed in this paper. Under this new non-orthogonal three-dimensional coordinate system, the proposed modulation has converted the original trigonometric functions in orthogonal three- dimensional space coordinate into simple algebraic operations, which greatly reduces algorithm complexity of the three-dimensional space vector modulation while preserving the independent control on the zero-sequence component. The experimental results verify the correctness and effectiveness of the proposed three-dimensional space vector modulation.

Key words： Three-phase four-wire system non-orthogonal three-dimensional coordinate system space vector modulation multi-level

Published: 16 January 2018

PACS:

TM46

Fund:国家自然科学青年基金（51407183）和住房和城乡建设部科技项目（2015-K1-029）资助

Corresponding Authors: 张传金男,1986年生,博士,研究方向为电力系统无功补偿及电能质量治理。E-mail: chuanjin2359@163.com

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	Zhang Chuanjin
	Hou Jie
	Tang Yi
	Yu Bo
	Liu Hao

Cite this article:

Zhang Chuanjin,Hou Jie,Tang Yi等. Multi-Level Space Vector Modulation Strategy in a Non-Orthogonal Three-Dimensional Coordinate System[J]. Transactions of China Electrotechnical Society, 2017, 32(24): 160-173.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160573 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I24/160

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