Method and apparatus for controlling a synchronous motor

Details Method and apparatus for controlling a synchronous motor Method and apparatus for controlling a synchronous motor

1996-05-21

1999-03-09

Shoop, Jr., William M.

Electricity: motive power systems

Synchronous motor systems

318720, 318721, 318722, H02P 146

Patent

active

058805702

ABSTRACT:
An inverter(3) for driving a motor(4) of an electric automobile(20) produces a three-phase PWM current. When the torque reference is zero, alternatively or when the torque reference is zero and motor speed is no higher than a predetermined value, the inverter(3) is controlled to be cut off so that current from a main power battery(9) is suspended or stopped.

REFERENCES:
patent: 4384240 (1983-05-01), Sloan
patent: 5345155 (1994-09-01), Masaki et al.
patent: 5471384 (1995-11-01), Nakashima et al.
patent: 5629603 (1997-05-01), Kinoshita et al.

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