Method and system for controlling permanent magnet AC machines

Details Method and system for controlling permanent magnet AC machines Method and system for controlling permanent magnet AC machines

2007-03-13

2009-11-24

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S430000, C318S434000, C318S700000, C318S801000

Reexamination Certificate

active

07622877

ABSTRACT:
Methods and systems are provided for controlling permanent magnet machines under varying loads. The method comprises generating a d-axis voltage command and a q-axis voltage command, producing a modified d-axis current command based on the q-axis voltage command and a d-axis current command, converting the modified d-axis current command to a modified d-axis voltage command, and transmitting the modified d-axis voltage command and the q-axis voltage command to the PM machine. The d-axis voltage command is based on a d-axis current command.

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