Control system for a power converter for driving induction motor

Details Control system for a power converter for driving induction motor Control system for a power converter for driving induction motor

1985-08-20

1988-10-25

Smith, Jr., David

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

318112, 318798, H02P 540

Patent

active

047806508

ABSTRACT:
In a control system for a power converter for driving induction motors, the control system separately controlling an exciting current component of the primary current of the induction motors contributing to generation of a magnetic flux and a torque current component of the primary current contributing to generation of a torque, a voltage detecting device detects the output voltage of the power converter, and a correcting device responds to the voltage detecting device for determining a current correction for correcting at least one of the exciting current component and the torque current component to reduce the difference of the detected voltage from a reference value of the output voltage.

REFERENCES:
patent: 3916275 (1975-10-01), Plunkett et al.
patent: 4314190 (1982-02-01), Walker et al.
patent: 4451771 (1984-05-01), Nagase et al.
patent: 4503375 (1985-03-01), Okuyama

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