Voltage type inverter device and method of controlling the same

Details Voltage type inverter device and method of controlling the same Voltage type inverter device and method of controlling the same

1997-03-12

1999-12-21

Wong, Peter S.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

318805, 318811, H02M 545, H02P 528

Patent

active

06005784&

ABSTRACT:
A voltage-type inverter device includes a 1/2 V(DC) detecting circuit (31) for detecting a voltage between one end of a DC power supply (3) and an output from an inverter circuit (4); a voltage command value setting means (29) for commanding an output voltage from the inverter circuit; a first arithmetic means (32) for receiving the voltage command from the voltage command value setting means (29) and a detection voltage from the 1/2 V (DC) detection circuit (31) to produce an error voltage; a second arithmetic means (33) for receiving the error voltage from the first arithmetic means (32) and a voltage command value from the voltage command value setting means (29) to produce a voltage corrected command value; and a PWM signal generator (12) for receiving the voltage corrected command value from the second arithmetic means (33) and a frequency command value commanding a frequency command value from the inverter circuit to create a PWM signal for driving the inverter circuit.

REFERENCES:
patent: 4788485 (1988-11-01), Kawagishi et al.
patent: 4965504 (1990-10-01), Ueda et al.
patent: 5250890 (1993-10-01), Tanamachi et al.
patent: 5483141 (1996-01-01), Uesugi
patent: 5483167 (1996-01-01), Mikami
patent: 5532569 (1996-07-01), Tanamachi et al.
patent: 5650700 (1997-07-01), Mutoh et al.
patent: 5656911 (1997-08-01), Nakayama et al.
patent: 5663627 (1997-09-01), Ogawa

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