| 摘要 |
PROBLEM TO BE SOLVED: To provide a parallel inverter device wherein even though a plurality of inverter circuit systems are connected in parallel with each other, the balance is secured between the output currents of the respective inverter circuits. SOLUTION: Providing consecutively between an AC power supply and respective rectifier circuits 14 a differential transformer 21 for coupling to each other electrically inverter circuits 11, 12, AC currents 11, 12 are regulated automatically by the differential transformer 1 to make them equal to each other. As a result, the balance in the output currents of the respective inverter circuits 11, 12 is secured, even though the output voltages of the respective rectifier circuits 14 tend to be different from each other by the difference between the DC resistance of inverse conversion circuits 15 provided in the respective inverter circuits 11, 12 and by the difference between the connection modes of respective transformers 1, 2 of the inverter circuits 11, 12. |
