| 一种用于SVPWM技术中的死区补偿方法 |
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| 引用本文： | 姜铭,曹建文,许连丙,张爱玲. 一种用于SVPWM技术中的死区补偿方法[J]. 电力电子技术, 2012, 46(8): 60-62. DOI: 10.3969/j.issn.1000-100X.2012.08.022 |
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| 作者姓名： | 姜铭 曹建文 许连丙 张爱玲 |
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| 作者单位： | 1.太原理工大学,电气与动力工程学院,山西太原030024;2.山西天地煤机装备有限公司,山西太原,030006 |
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| 基金项目： | 山西省科技攻关资助项目 |
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| 摘 要： | 提出一种用于空间矢量脉宽调制(SVPWM)的死区补偿方法.该方法根据电流极性及6个非零电压空间矢量间的位置关系,确定了所需补偿的电压空间矢量,仅需在每个PWM周期内对部分PWM脉宽进行修正就能有效改善由死区效应引起的输出波形畸变,减小误补偿随时间积累所产生的影响,减少CPU运行时间.最后通过TMS320LF2407A型DSP实现该补偿算法,并在110 kW感应电机变频调速系统中验证了其有效性.
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| 关 键 词： | 逆变器 死区补偿 空间矢量脉宽调制 |
A Dead-time Compensation Method in SVPWM Technique |
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| JIANG Ming , CAO Jian-wen , XU Lian-bing , ZHANG Ai-ling. A Dead-time Compensation Method in SVPWM Technique[J]. Power Electronics, 2012, 46(8): 60-62. DOI: 10.3969/j.issn.1000-100X.2012.08.022 |
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| Authors: | JIANG Ming CAO Jian-wen XU Lian-bing ZHANG Ai-ling |
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| Affiliation: | 1 (1.Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | A novel dead-time compensation method of the space vector pulse width modulation(SVPWM) technique is presented.According to the current polarity and position of six non-zero voltage space vector,the voltage space vector to be compensated is determined.This method only needs correct part of pulse width in every PWM cycle,it can effectively improve the output wareform caused by dead-time effect,and minimize error compensation and the running time of CPU.At last it is realized by TMS320LF2407A DSP chip,and the validity of this method is proved by 110 kW induction motor variable frequency speed-regulating system. |
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| Keywords: | inverter dead-time compensation space vector pulse width modulation |
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