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Single-phase switch-mode rectifier employing voltage-reversal circuit switched with a fixed frequency

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4 Author(s)
Oishi, H. ; Dept. of Electr. Eng., Oita Nat. Coll. of Techno., Japan ; Okada, H. ; Ishizaka, K. ; Itoh, R.

A single-phase switch-mode rectifier employing a voltage-reversal circuit is studied. The voltage-reversal circuit is switched with a fixed frequency in order to give a supply current with a sinusoidal waveform and a near-unity power factor independent of the working conditions, and to suppress the magnetic noise caused by the low-order harmonics. The operation is macroscopically analysed by a state-space averaging method based on a DC equivalent circuit and such an operation is also simulated by a rigorous state-space method. The arrangement tested, using two insulated-gate bipolar transistors and a 16-bit microcomputer, is implemented to investigate experimentally the steady-state and transient characteristics. The experimental and simulated results confirm the relevance of a switching strategy with a fixed frequency for a single-phase switch-mode rectifier employing a voltage-reversal circuit

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Electric Power Applications, IEE Proceedings -  (Volume:142 ,  Issue: 2 )