Power inverter having three or more parallel driven PWM-type pow

Details Power inverter having three or more parallel driven PWM-type pow Power inverter having three or more parallel driven PWM-type pow

1997-06-12

1998-12-22

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

363 65, H02M 7519

Patent

active

058525548

ABSTRACT:
A power inverter having: three or more PWM-type power inverting units which are so arranged and constructed as to be enabled to be driven in parallel; a plurality of integrated interphase reactors, each of which is so arranged and constructed as to synthesize each of the same phase output currents of the respective PWM-type inverting units and supply the synthesized phase output current to a load such as a three-phase induction motor; a plurality of current balance controllers, each of which is so arranged and constructed as to carry out a retardation correction for a PMW waveform outputted from the respective PWM-type power inverting units in the corresponding phase so that each phase current between the respective PWM-type inverting units is balanced.

REFERENCES:
patent: 5245525 (1993-09-01), Galloway et al.
patent: 5253155 (1993-10-01), Yamamoto
patent: 5657217 (1997-08-01), Watanabe et al.
patent: 5705909 (1998-01-01), Rajashekara

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