基于低通滤波器的正弦波电压DC/AC变换器拓扑的瞬时电流和电压控制策略用于调速PWM驱动系统

Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on Pub Date : 1900-01-01 DOI:10.1109/ISIE.2002.1025837

R. Seliga, W. Koczara

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引用次数: 18

摘要

本文介绍了一种用于调速笼型感应电动机驱动系统的三相DC/AC PWM变换器的拓扑结构和控制。结果表明，采用低通LC滤波器对PWM变换器进行瞬时反馈控制，有效地降低了损坏电机轴承和绝缘的高频谐波。本文提出的采用瞬时LC滤波电流和电压反馈回路的变换器控制技术，可以有效地降低开关频率分量，为电机提供高质量的正弦波变频和幅值电压。以2.2 kW的实验室驱动系统为例，对所提出的拓扑结构和控制策略进行了实验验证。给出了该变换器在不同电机转速下的高质量正弦输出电压。

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Instantaneous current and voltage control strategy in low-pass filter based sine-wave voltage DC/AC converter topology for adjustable speed PWM drive system

The paper describes work on the development of a topology and control of a three-phase DC/AC PWM converter for an adjustable speed cage induction motor drive system. It is shown that the proposed instantaneous feedback control method of the PWM converter with the low-pass LC filter effectively reduces high frequency harmonics which can damage the motor bearings and insulation. The proposed control technique of the converter with instantaneous LC filter current and voltage feedback loops, is very effective in reducing the switching frequency component and provides high quality sine-wave variable frequency and amplitude voltage to the motor. Experimental verification of the proposed topology and control strategy is provided with 2.2 kW laboratory drive system with conventional cage induction motor. The high quality sinusoidal output voltage from proposed converter at different motor speeds is presented.

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Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on

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