三电平有源中点钳位逆变器损耗分布平衡控制策略

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摘要有源中点钳位型拓扑通过增加新的零状态电流通路,可以对各开关管上的损耗分布进行平衡。以三电平有源中点钳位逆变器为研究对象,分析了在不同输出状态之间进行切换时器件损耗分布情况,采用空间矢量脉宽调制方法,对8种换流模式及其损耗分布进行了系统的研究;针对负载功率因数的不同特点,提出了两种损耗分布平衡优化控制策略,在不同的负载条件下有效地实现了器件损耗的平衡分布。最后搭建了三电平有源中点钳位逆变器实验平台进行验证,实验结果验证了所提出控制策略的有效性。

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	胡存刚
	马大俊
	王群京
	李国丽
	陈权

关键词 ：有源中点钳位, 三电平逆变器, 空间矢量脉宽调制, 损耗分布平衡, 换流模式

Abstract：The topology of active neutral-point-clamped (ANPC) inverter can balance the loss distribution of switch devices by adding new zero-state current paths. In this paper, the loss distribution of the three-level ANPC inverter among different output states change is analyzed. Using space vector pulse width modulation (SVPWM), eight commutation modes and their loss distributions are studied. For different load power factor, two novel control strategies of adjustable loss distribution are proposed. As a result, it leads to effectively control loss distributions balancing with different loads. The experimental results are provided to verify the effectiveness of the proposed control strategy.

Key words： Active neutral-point-clamped (ANPC) three-level inverter space vector pulse width modulation (SVPWM) loss distribution balancing commutation mode

收稿日期: 2016-05-10 出版日期: 2017-01-19

PACS:

TM464

基金资助:国家自然科学基金项目(51307002)和安徽省高校自然科学研究重大项目(KJ2016SD02)资助。

通讯作者: 胡存刚男,1978年生,副教授,硕士生导师,研究方向为多电平变换器、光伏发电和微电网。 E-mail:hcg@ahu.edu.cn

作者简介: 马大俊男,1993年生,硕士研究生,研究方向为电力电子与电气传动。 E-mail:mdj18769@163.com

引用本文:

胡存刚, 马大俊, 王群京, 李国丽, 陈权. 三电平有源中点钳位逆变器损耗分布平衡控制策略[J]. 电工技术学报, 2017, 32(1): 129-138. Hu Cungang,Ma Dajun,Wang Qunjing,Li Guoli,Chen Quan,. Control Strategy of Loss Distribution Balancing for Three-Level Active Neutral-Point-Clamped Inverter. Transactions of China Electrotechnical Society, 2017, 32(1): 129-138.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I1/129

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