Power conversion system

Details Power conversion system Power conversion system

1997-09-22

1999-09-28

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

H02P 528

Patent

active

059594306

ABSTRACT:
A power conversion system, including a converter for converting an AC power from a power source to a DC power, a DC capacitor for smoothing the DC power output from the converter, an inverter for converting the DC power smoothed by the DC capacitor to an AC power of an arbitrary frequency to drive and control an induction motor, a unit for detecting or computing a magnetic flux axis of the induction motor, a unit for computing a current orthogonal to the detected or computed magnetic flux axis, and a phase control unit for controlling a phase angle of an output voltage of the inverter so that a value of the current orthogonal to the detected or computed magnetic flux axis is maintained at a constant level.

REFERENCES:
patent: 4019116 (1977-04-01), Klautschek
patent: 4628475 (1986-12-01), Azusawa et al.
patent: 5166593 (1992-11-01), De Doncker et al.

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