A PWM AC-to-DC converter with fixed switching frequency

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1990Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Transactions on Industry Applications, volume 26, pages 880-885 (issn: 0093-9994,

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Authors: R. Wu; S.B. Dewan; G.R. Slemon;

doi: 10.1109/28.60060 , 10.1109/ias.1988.25140

A PWM AC-to-DC converter with fixed switching frequency

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Abstract

For a PWM (pulsewidth-modulated) AC-to-DC converter, a predicted current control strategy with fixed switching frequency (PCFF control) is proposed. Its principle and implementation are described, and experimental results are provided which show that the converter under PCFF control has bidirectional power transmission ability with high dynamic performance. The line currents are close to sinusoidal with unit power factor. The PCFF control produces a better switching pattern than hysteresis current control. This results in a reduction of harmonics in the line currents and lower stress on the switching devices. >

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