SINGLE-PHASE/THREE-PHASE SHARED POWER REGULATOR AND THREE-PHASE SIX ARM PHASE CONTROL METHOD

WIPO Patent Application WO/2022/070241

A1

This single-phase/three-phase shared power regulator includes: a power supply phase acquisition unit (power supply waveform acquisition unit 12) that acquires phase information of a line voltage of an AC power supply; an AC current control circuit 13 to which unidirectional current control elements (131, 132) are connected in anti-parallel; a trigger angle calculation unit that, in a single-phase control mode, calculates a trigger angle for a single-phase AC power supply and that, in a three-phase control mode, calculates a trigger angle for a three-phase AC power supply; and a trigger control unit that, in the single-phase control mode, outputs, on the basis of the phase information and the trigger angle for the single-phase AC power supply, a first trigger signal for the unidirectional current control element matching the polarity of the phase information and that, in the three-phase control mode, outputs a second trigger signal based on the phase information and the trigger angle for the three-phase AC power supply and a third trigger signal delayed 60° from the second trigger signal to the unidirectional current control element matching the polarity of the phase information. Consequently, the single-phase/three-phase shared power regulator 1 can switch between control for the single-phase AC power supply and control for the three-phase AC power supply.

GOTOH SHIGEFUMI (JP)
YOSHIKAWA HIROHISA (JP)
FURUHASHI RYOUHEI (JP)

PCT/JP2020/036841

April 07, 2022

September 29, 2020

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RKC INSTRUMENTS INC (JP)

G05F1/455; H02M5/257

JPH08228468A	1996-09-03
JPH08223912A	1996-08-30
JPS5755767A	1982-04-02
JPH08317690A	1996-11-29

KATO, Masanobu et al. (JP)

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