| 一种新的基于SVPWM策略的死区补偿方法 |
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| 引用本文： | 王庆义,邓歆,罗慧,尹泉,万淑芸.一种新的基于SVPWM策略的死区补偿方法[J].电气传动,2008,38(2):19-22,26. |
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| 作者姓名： | 王庆义 邓歆 罗慧 尹泉 万淑芸 |
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| 作者单位： | 华中科技大学,控制科学与工程系,湖北省,武汉,430074 |
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| 摘 要： | 在基于SVPWM的电压源逆变器中死区时间的插入是必不可少的.这将导致电压和电流的畸变,也就是所谓的死区效应.对这一问题提出了许多不同的补偿方法.在传统的平均死区电压补偿方法基础上提出了一种新的改进方法,在运行速度很低时该方法比传统的方法有更小的电压和电流畸变,而且由软件实现,不需要增加额外的硬件.仿真试验结果证实了该方法的有效性.
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| 关 键 词： | 死区效应 线性补偿 伏秒原理 |
| 收稿时间： | 2007-01-08 |
| 修稿时间： | 2007-09-14 |
New Method of Dead Time Compensation Based on SVPWM Strategy |
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| WANG Qing-yi,DENG Xin,LUO Hui,YIN Quan,WAN Shu-yun.New Method of Dead Time Compensation Based on SVPWM Strategy[J].Electric Drive,2008,38(2):19-22,26. |
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| Authors: | WANG Qing-yi DENG Xin LUO Hui YIN Quan WAN Shu-yun |
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| Abstract: | It is nature to insert a switching delay time in sinusoidal pulse width modulation(PWM) voltage-fed inverters to prevent a short circuit in the DC link.This causes well known dead time effect which distorts the output voltage and current.Many compensation schemes are proposed to overcome the drawbacks.Based on the traditional average dead time compensation techniques,an improved method was proposed to advance the performance of dead time compensation.The method is based on SVPWM strategy and it can be implemented with software without any extra hardware.Simulation results demonstrate the validity of the proposed method. |
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| Keywords: | dead time effect linear compensation volt-second principle |
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