|本期目录/Table of Contents|

[1]李宁,王跃,蒋应伟,等. 新型三电平变流器中点电压控制策略及其可控区域[J].电机与控制学报,2015,19(01):35-44.[doi:10. 15938/j. emc.2015.01.006]
 LI Ning WANG Yue JIANG Ying-wei WANG Zhaoan. A novel neutral point voltage control strategy of three-level NPCconverter and its single switch cycle control region analysis[J].,2015,19(01):35-44.[doi:10. 15938/j. emc.2015.01.006]
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 新型三电平变流器中点电压控制策略及其可控区域(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
19
期数:
2015年01
页码:
35-44
栏目:
出版日期:
2015-01-15

文章信息/Info

Title:
 A novel neutral point voltage control strategy of three-level NPC
converter and its single switch cycle control region analysis
作者:
 李宁 12王跃 1蒋应伟 1王兆安 1
 1.西安交通大学 电气工程学院,陕西西安710049 ; 2.西安理工大学自动化学院,陕西西安710048
Author(s):
 LI Ning 12WANG Yue 1JIANG Ying-wei 1WANG Zhao一an 1
 1. School of Electrical Engineering, Xi’an JiaoTong University,Xi’an 710049,China;
2. School of Automationand Information Engineering, Xi`an
University of Technology,Xi’an 710048,China
关键词:
 关键词:三电平NPC变流器中点电压平衡控制策略单开关周期完全可控区域正弦脉宽调制空间矢量脉宽调制
Keywords:
 Keywords:three-level NPC converter novel NP voltage balance strategysingle switch cycle control regionSPWMSVPWM
分类号:
TM 46
DOI:
10. 15938/j. emc.2015.01.006
文献标志码:
A
摘要:
 摘要:针对三电平中点钳位(neutral point clamped , NPC)变流器中点电压波动问题,分析了三电
平变流器基本工作原理,提出了一种适用于任意调制策略的三电平变流器中点电压平衡策略。该
策略以输出线电压满足要求为控制目标,根据中点电压的波动情况实时修正调制策略的输出开关
状态。鉴于单开关周期完全可控区域的重要意义,本文分别分析了调制策略为正弦脉宽调制(si-
nusoidal pulse width modulation,SPWM)策略和空间矢量脉宽调制(space vector pulse width modula-
tion , SVPWM)策略时新型中点电压平衡策略的单开关周期完全可控区域。理论分析和仿真结果表
明,新型中点电压平衡策略具有普遍适用、实现简单的优点,其单开关周期完全可控区域受调制策
略、调制度、运行时间和功率因数的影响。
Abstract:
 Abstract:A novel neutral point(NP)voltage control strategy of three一level neutral point clamped
(NPC)converter was proposed to eliminate the NP voltage fluctuation under any modulation strategy.
The novel NP voltage control strategy was based on the control target of output line voltage,and real-
time correction of output switching states were given according to the NP voltage fluctuation. It is suitable
for any modulation strategy as it only deals with the output switching states of any modulation strategy. In
order to analyze the control effect of the proposed strategy,the single switch cycle control region was taken
as the measurement standard and analysis of fully control region was conducted respectively when using the
two most commonly used modulation strategy, sinusoidal pulse width modulation(SPWM)strategy and
space vector pulse width modulation(SVPWM ).The theoretical analysis and simulation results show that
the novel NP voltage control strategy has the advantages of wide application and easy implementation.
Whereas,the fully control region of the new strategy is affected by modulation strategy,modulation index
and rower factor.

参考文献/References:

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备注/Memo

备注/Memo:
 基金项目:863先进能源领域重大项目(2012 AA050206 );新世纪优秀人才支持计划资助
更新日期/Last Update: 2015-07-21