Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1993-04-26
1996-01-02
Ip, Paul
Electricity: motive power systems
Induction motor systems
Primary circuit control
318807, 318803, H02M 700, H02P 540
Patent
active
054811724
ABSTRACT:
A control circuit for controlling a power converting apparatus, maintaining a stable operation of an induction motor. The control circuit includes an exciting current obtaining circuit which obtains the exciting current component from a detected signal of primary currents of the induction motor, a circuit which obtains an exciting current oscillation component from the exciting current correlate, a circuit which obtains correcting quantity from the exciting current oscillation component, and circuits which correct the voltage command or the flux command by the correcting quantity, and provide it to the power converting apparatus as stator axis voltage command values.
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"Current Oscillation Limiting of an Inverter--Induction Motor System", National Meeting of Institute of Electric Engineers of Japan, No. 1665, 1989 (Ref. 2).
"High-Performance General Purpose Inverter Based On Flux Control PWM Method", IEA-87-6, Society for the Study of Industrial Electric Power Application of the Institute of Electric Engineers of Japan.
Ishii Shin'ichi
Minowa Hirofumi
Yamazoe Masaru
Yanase Takao
Fuji Electric & Co., Ltd.
Ip Paul
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