| 电压源型PWM逆变器死区效应补偿策略研究 |
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| 引用本文： | 王连芳,王建民.电压源型PWM逆变器死区效应补偿策略研究[J].电气传动自动化,2010(5):13-17. |
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| 作者姓名： | 王连芳 王建民 |
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| 作者单位： | 1. 山东省第二技术学院,山东聊城,252000
2. 山东大学电气工程学院,山东济南,250061 |
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| 摘 要： | 针对电压源型PWM逆变器的死区效应,提出了一种减小零电流钳位和寄生电容影响的死区补偿方法。分析了因死区时间和开关器件的非理想特性引起的误差电压,对因零电流钳位造成的电流极性检测不准进行了校正,并根据功率开关器件寄生电容引起的导通和关断延时,对补偿电压大小进行了调整。仿真结果证明,该补偿方法有效改善了电机的电流波形,提高了逆变器的输出性能。
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| 关 键 词： | 死区补偿 电压源型PWM逆变器 永磁同步电动机 仿真 |
Dead-time compensation strategy for voltage-source PWM inverter |
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| WANG Lian-fang,WANG Jian-min.Dead-time compensation strategy for voltage-source PWM inverter[J].Electrical Drive Automation,2010(5):13-17. |
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| Authors: | WANG Lian-fang WANG Jian-min |
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| Affiliation: | WANG Lian-fang1,WANG Jian-min2(1.The Second Technology Institute of Shandong Province,Liaocheng 252000,China,2.Department of Electrical Engineering,Shandong UniversityJ,inan 250061,China) |
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| Abstract: | A dead-time compensation strategy is presented for voltage-source PWM inverter taking zero-current clamp and parasitic capacitance effects into account.The influence of dead-time,turn-on time and turn off time of switching devices,on-state voltage of switching devices and of diodes on output voltage is analyzed in detail.Failure in polarity reversal of the phase current caused by the zero-current clamp phenomenon is corrected before compensation.Variation in transition time due to the parasitic capacitance ... |
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| Keywords: | dead-time compensation voltage-source PWMinverter permanent-magnet synchronous motor simulation |
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