| 一种抑制VSI零电流箝位效应的死区补偿方法 |
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| 引用本文： | 周华伟,温旭辉,赵峰,张剑,郭新华.一种抑制VSI零电流箝位效应的死区补偿方法[J].电机与控制学报,2011,15(1):26-32. |
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| 作者姓名： | 周华伟 温旭辉 赵峰 张剑 郭新华 |
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| 作者单位： | 中国科学院电工研究所;中国科学院研究生院; |
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| 基金项目： | 国家自然科学基金(50777060) |
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| 摘 要： | 电压源逆变器低频和轻载时,死区效应导致相电压和相电流畸变、零电流箝位效应等问题.为解决上述问题,分析死区效应和零电流箝位机理,发现了零电流箝位效应产生的一个主要原因,提出一种死区时间补偿策略.该策略无需电流极性检测,在SVPWM基础上,在每个PWM周期内对两个非零空间电压矢量作用时间分别进行补偿,该补偿根据这两个空间电...
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| 关 键 词： | 空间矢量脉宽调制 电压源逆变器 死区效应 死区时间补偿 零电流箝位效应抑制 |
Dead-time compensation method of restraining zero-current clamping effects for VSI |
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| ZHOU Hua-wei,WEN Xu-hui,ZHAO Feng,ZHANG Jian,GUO Xin-hua.Dead-time compensation method of restraining zero-current clamping effects for VSI[J].Electric Machines and Control,2011,15(1):26-32. |
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| Authors: | ZHOU Hua-wei WEN Xu-hui ZHAO Feng ZHANG Jian GUO Xin-hua |
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| Affiliation: | ZHOU Hua-wei1,2,WEN Xu-hui1,ZHAO Feng1,ZHANG Jian1,GUO Xin-hua1(1.Institute of Electrical Engineering Chinese Academy of Sciences,Beijing 100190,China,2.Graduate University of Chinese Academy of Sciences,China) |
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| Abstract: | Voltage source inverter(VSI) has some problems caused by dead-time effects,such as phase-voltage and phase-current distortions,zero-current clamping effects,etc.To solve the problems,dead-time effects and zero-current clamping effects were analyzed,a main cause of zero-current clamping effects was found,and then a dead-time compensation algorithm was proposed.The algorithm doesn't have to check current polarity.Based on space vector pulse width modulation(SVPWM),the dead-time compensation time was distribut... |
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| Keywords: | space vector pulse width modulation voltage source inverter dead-time effects dead-time compensation time zero-current clamping effects restraint |
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