Analysis and design of single-controlled switch three-phaserectifier with unity power factor and sinusoidal input current |
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Authors: | Tou M. Al-Haddad K. Olivier G. Rajagopalan V. |
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Affiliation: | GREPCI, Ecole de Technol. Superieure, Montreal, Que.; |
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Abstract: | This paper describes a new low-cost three-phase AC-DC high-power/low-harmonic-controlled rectifier and its analysis, design, and performance. The circuit consists of a three-phase diode-bridge rectifier, followed by a boost stage containing only one switch and one boost inductor. The proposed converter is used to automatically draw sinusoidal input-current waveforms with high efficiency. This is achieved with discontinuous-input voltage to the rectifier and with a discontinuous-inductor-current mode of operation of the boost converter. By using a simplified single-phase model and symbolic analysis method, analytical equations are obtained and used for design |
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