|本期目录/Table of Contents|

[1]刘和平,路莹超,王华斌,等. 电压型逆变器分段死区补偿调制策略[J].电机与控制学报,2018,22(03):25-32.[doi:10.15938/j.emc.2018.03.004]
 LIU He-ping,LU Ying-chao,WANG Hua-bin,et al. Dead-time compensation modulation strategy ofsubsection integrated in voltage source inverter[J].,2018,22(03):25-32.[doi:10.15938/j.emc.2018.03.004]
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 电压型逆变器分段死区补偿调制策略(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
22
期数:
2018年03
页码:
25-32
栏目:
出版日期:
2018-03-15

文章信息/Info

Title:
 Dead-time compensation modulation strategy ofsubsection integrated in voltage source inverter
作者:
 刘和平1 路莹超1 王华斌2 苗轶如1
 ( 1. 重庆大学 输配电装备及系统安全与新技术国家重点实验室,重庆 400044;2. 重庆科技学院 电气与信息工程学院,重庆 401331)
Author(s):
   LIU He-ping1 LU Ying-chao1 WANG Hua-bin2 MIAO Yi-ru1
 ( 1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China; 2. School of Electronic and Information Engineering,Chongqing University of Science and Technology,Chongqing 401331,China)
关键词:
死区消除 死区补偿 电流过零区 谐波畸变率 电压型逆变器
Keywords:
 dead-time elimination dead-time compensation zero current zone total harmonic distortionvoltage source inverter
分类号:
TM464
DOI:
10.15938/j.emc.2018.03.004
文献标志码:
A
摘要:
 对电压源型逆变器中死区效应引起的电流谐波畸变问题,提出了一种分段混合式 PWM死区抑制策略。一方面在电机定子电流的非过零区域根据电流方向仅动作一个桥臂,实现了死区消除,并针对由器件导通压降与开关延时产生的电压误差进行了修正; 另一方面在过零区域采用脉冲等效时间补偿法抑制零电流钳位效应产生的非线性误差。此外在整个区域补偿开关管的开通关断延时及器件的导通压降造成的非线性误差。为了最大限度增加死区消除时间的占比,设计了上述两种调制策略之间的最优切换方法。仿真和实验结果表明,死区分段消除与补偿混合调制策略能够显著减小定子电流的谐波畸变率,并有效抑制死区效应对系统的影响,证明了该方法的有效性和实用性。
Abstract:
 A subsection integrated deed-time effect suppression strategy was presented to suppress currentharmonic distortion caused by deed-time effect in voltage source inverter. On one hand,deed-time was e-liminated by controlling only one bridge leg according to stator current direction of motor in nonzero cur-rent zone,
meanwhile the voltage error caused by conduction voltage drop and switch delay was corrected.On the other hand,nonlinear error caused by zero current clamping effect was decreased by equivalenttime compensation method based on pulse in zero current zone. Furthermore,in order to maximally elimi-nate the deed-time,an optimal switch method of the proposed PWM strategies was designed. The simula-tion and experimental results show the reduction of total harmonic distortion( THD) of stator current andthe suppression of the influence caused by deed-time on the system,which demonstrates the validity andpracticability of the proposed method.

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期: 2016 - 04 - 08
基金项目: 重庆市科委基金( cstc2014jcyc A70001)
作者简介: 刘和平( 1957—) ,男,教授,博士生导师,研究方向为电力传动及其控制技术、汽车电子;
路莹超( 1991—) ,男,硕士,研究方向为电力电子及电力传动;
王华斌( 1974—) ,男,博士,副教授,研究方向为电力电子与电力传动、电机控制;
苗轶如( 1988—) ,男,博士研究生,研究方向为电力电子及电力传动。
更新日期/Last Update: 2018-06-30