| 三相PWM逆变器软开关动作时序分析 |
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| 引用本文： | 陈国呈,许春雨,孙承波,屈克庆. 三相PWM逆变器软开关动作时序分析[J]. 电源学报, 2005, 3(2): 125-128 |
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| 作者姓名： | 陈国呈 许春雨 孙承波 屈克庆 |
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| 作者单位： | 上海大学;上海大学;上海大学;上海大学 |
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| 基金项目： | 国家自然科学基金资助项目(59977012)，台达环境与教育基金会电力电子科教发展基金资助项目 |
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| 摘 要： | 通过对软开关三相PWM逆变器的研究和实验，针对在实验中出现谐振槽不正常的现象，分析了本软开关电路拓扑下实现软开关动作的工作原理及谐振动作时序，阐述了PWM驱动信号与谐振电路的动作时序间的关系，指出要使谐振能正常进行，必须要使PWM驱动信号的开通动作控制在谐振电感的电流iLr变为负之前，这样才能在直流母线电压上出现一个完整的谐振槽，保证逆变器主电路开关管实现软开关动作。
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| 关 键 词： | 软开关 逆变器 谐振条件 时序 |
| 收稿时间： | 2005-03-14 |
Analysis on Soft-Switching Operation Sequence of Three-Phase PWM Inverter |
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| Chen Guocheng,Xu chunyu,Sun chengbo and Qu Keqing. Analysis on Soft-Switching Operation Sequence of Three-Phase PWM Inverter[J]. Journal of Power Supply, 2005, 3(2): 125-128 |
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| Authors: | Chen Guocheng Xu chunyu Sun chengbo Qu Keqing |
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| Abstract: | By investigating and experimenting on Soft-Switching PWM Inverter, the realization of soft-switching under alternate slopes (positive or negative) sawtooth have been analyzed. The working principles of soft-switching and resonant action sequence using such soft-switching topology have been discussed detailedly, the relation between action time series of resonant circuit and PWM driver signal have been presented also. Make sure that to make the resonant normal, only if the PWM driver signal turned on before the current of resonant inductance (iLr) became negative, would a full resonant groove shown in DC bus voltage. |
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| Keywords: | Soft-switching inverter resonant condition sequence |
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