Self generative PWM voltage source inverter induction motor driv

Details Self generative PWM voltage source inverter induction motor driv Self generative PWM voltage source inverter induction motor driv

1982-10-06

1984-09-04

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Power-factor control

318805, 318809, H02P 540

Patent

active

044699972

ABSTRACT:
A PWM, controlled current, voltage source inverter controls an induction motor in response to signals from a power factor control circuit. The power factor control circuit receives signals related to motor terminal voltages and multiplexes them to a comparator. The inverter and multiplexer are sequenced each time the comparator input reaches a reference level. The frequency of the inverter is thus self generated. The power factor of the system can be controlled to implement a variety of control strategies.

REFERENCES:
patent: 3909687 (1975-09-01), Abbondanti
patent: 4001660 (1977-01-01), Lipo
patent: 4249120 (1981-12-01), Earle
patent: 4364109 (1982-12-01), Okado et al.
patent: 4377779 (1983-03-01), Plunkett
patent: 4400655 (1983-08-01), Curtiss et al.

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