| 电压型PWM逆变器输出误差分析及其补偿 |
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| 引用本文： | 陈硕,薛昭武. 电压型PWM逆变器输出误差分析及其补偿[J]. 电工技术学报, 2001, 16(2): 51-55 |
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| 作者姓名： | 陈硕 薛昭武 |
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| 作者单位： | 福州大学机械工程系 |
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| 基金项目： | 福州大学科技发展基金研究项目 |
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| 摘 要： | 由于死区时间和电力电子器件IGBT非理想特性的影响 ,PWM逆变器存在输出误差 ,使得众多的调速方案在低速运行时性能不佳或无法实现调速。本文详细分析死区时间和IGBT非理想特性对输出电压的影响 ,提出测量IGBT非理想特性方法和输出误差补偿法 ,并通过实验验证了误差补偿法的有效性。
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| 关 键 词： | 电压型PWM逆变器 IGBT 死区时间 开关延迟时间 正向管压降 |
| 修稿时间： | 2000-11-13 |
The Analysis and Compensation of Output Error for Voltage Source PWM Inverter |
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| Chen Shuo,Xue Zhaowu. The Analysis and Compensation of Output Error for Voltage Source PWM Inverter[J]. Transactions of China Electrotechnical Society, 2001, 16(2): 51-55 |
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| Authors: | Chen Shuo Xue Zhaowu |
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| Affiliation: | Fuzhou University 350002 China |
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| Abstract: | Because a PWM inverter has an output error due to the dead time and the non ideal characteristic of IGBT,a number of variable speed schemes cannot obtain a good performance or operate at low speed This paper analyzes the influence of the dead time and the non ideal characteristic on the output voltage in detail,and proposes a measurement of IGBT and a compensating algorithm for the inverter The validity of the proposed method has been verified by experimentation |
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| Keywords: | Voltage source PWM inverter IGBT Dead time Switching delay time Forward voltage drop |
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