[1]林珍君,刘永江,李 华,等.一种基于可变虚拟中矢量的三电平SVPWM 调制策略[J].控制与信息技术(原大功率变流技术),2018,(03):27-32.[doi:10.13889/j.issn.2096-5427.2018.03.100]
 LIN Zhenjun,LIU Yongjiang,LI Hua,et al.A Three-level Space Vector PWM Strategy Based on Variable Virtual Middle Vector[J].High Power Converter Technology,2018,(03):27-32.[doi:10.13889/j.issn.2096-5427.2018.03.100]
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一种基于可变虚拟中矢量的三电平SVPWM 调制策略()
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《控制与信息技术》(原《大功率变流技术》)[ISSN:2095-3631/CN:43-1486/U]

卷:
期数:
2018年03期
页码:
27-32
栏目:
电力与传动控制
出版日期:
2018-06-05

文章信息/Info

Title:
A Three-level Space Vector PWM Strategy Based on Variable Virtual Middle Vector
文章编号:
2096-5427(2018)03-0027-06
作者:
林珍君刘永江李 华刘海涛李聪炟薛 新
(株洲中车时代电气股份有限公司,湖南株洲 412001)
Author(s):
LIN Zhenjun LIU Yongjiang LI Hua LIU Haitao LI Congda XUE Xin
( Zhuzhou CRRC Electric Times Co., Ltd., Zhuzhou, Hunan 412001, China )
关键词:
牵引变流器T 型三电平拓扑变虚拟空间矢量中点电压箝位
Keywords:
traction converter T-type three-level topology variable virtual space vector neutral point control (NPC)
分类号:
TM464
DOI:
10.13889/j.issn.2096-5427.2018.03.100
文献标志码:
A
摘要:
T 型三电平拓扑因具有高效率、低谐波输出等优点而被广泛应用于电能变换器中,其电容中点电压控制的效果将直接影响变流器性能。文章分析了T 型三电平主电路中点电压不平衡问题,提出了一种基于变虚拟空间矢量的调制策略,其利用正、负小矢量和中矢量合成的变虚拟中矢量参与空间矢量调制,有效控制了中点电压的偏移。仿真和实验结果验证了该T 型三电平拓扑调制策略在地铁系统中应用的可行性与优越性。
Abstract:
T-type three-level topology has been widely applied in power converters for its high efficiency and low output harmonics, and the performance of this converter is determined by the effect of its capacitor neutral point voltage control. This paper analyzed the neutral point voltage balance in T-type three-level circuit and proposed a variable virtual space vector PWM (VVSVPWM) strategy. By modulating the reference space vector using variable virtual middle vector which is constructed by plus or minus small vector and middle vector, the neutral point voltage has been effectively controlled. The feasibility and superiority of the T-type three-level topology applied on metro traction converter system has been verified by model simulation and experiments.

参考文献/References:

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[7]MONGE S B, SOMAVILLA S, BORDONAU J, et al. Capacitor Voltage Balance for the Neutral-Point- Clamped Converter using the Virtual Space Vector Concept With Optimized Spectral Performance [J]. IEEE Transactions on Power Electronics,2007, 22(4): 1128-1135.
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备注/Memo

备注/Memo:
收稿日期:2017-12-04
作者简介:林珍君(1987-),男,博士,工程师,研究方向为电力电子与电力传动。
基金项目:国家重点研发计划(2017YFB1201304-25)
更新日期/Last Update: 2018-06-26