| 高频PWM脉冲波传输引起电机端子过电压的研究 |
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| 引用本文： | 万健如,林志强,禹华军. 高频PWM脉冲波传输引起电机端子过电压的研究[J]. 中国电机工程学报, 2001, 21(11): 43-47 |
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| 作者姓名： | 万健如 林志强 禹华军 |
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| 作者单位： | 天津大学电气自动化与能源工程学院 |
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| 基金项目： | 天津市自然科学基金资助项目(013602711). |
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| 摘 要： | 基于传输线理论，在分析高频PWM脉冲波在电缆上的传输及反射过程基础上，分析电机端子过电压产生机理；建立高频下适于仿真电机端电压的系统仿真模型，讨论反射波振荡频率对电缆和电机参数的影响，通过仿真建立反射波峰值电压与电缆长度，载频等参数的关系，提出在电机端并联阻抗匹配网络的方法抑制过电压。
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| 关 键 词： | 电机 定子绕组 过电压 脉冲波 高频PWM |
| 文章编号： | 0258-8013(2001)11-0043-05 |
| 修稿时间： | 2000-12-04 |
RESEARCH ON MOTOR TERMINAL OVER-VOLTAGE CAUSED BY HIGH-FREQUENCY PWM PULSE |
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| WAN Jian-ru,LIN Zhi-qiang,YU Hua-jun. RESEARCH ON MOTOR TERMINAL OVER-VOLTAGE CAUSED BY HIGH-FREQUENCY PWM PULSE[J]. Proceedings of the CSEE, 2001, 21(11): 43-47 |
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| Authors: | WAN Jian-ru LIN Zhi-qiang YU Hua-jun |
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| Abstract: | This paper investigates the principle of motor terminal over-voltage b y analyzing the transmission and reflection of PWM pulse wave on cable using tra nsmission line theory. The relations between the over-voltage and cable, carrie r-frequency are established by simulations based on the system model in which t he changes of cable and motor parameter are presented because of high frequency of reflected pulse wave. Finally, the designed impedance-matching Terminator ef fectively reduces the transient over-voltage. |
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| Keywords: | PWM pulse high-frequency distributed capacitor characteristic impedance. |
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