Apparatus for controlling torque of electric rotating machine

Details Apparatus for controlling torque of electric rotating machine Apparatus for controlling torque of electric rotating machine

2011-07-26

2011-07-26

Ip, Paul (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

C318S400020, C318S400390, C318S432000, C318S494000

Reexamination Certificate

active

07986116

ABSTRACT:
The apparatus is for controlling a torque of an electric rotating machine at a command torque by supplying command voltages in accordance with the command torque to a power conversion circuit driving the electrical rotating machine. The apparatus includes a detecting function of detecting an input voltage of the power conversion circuit to be power-converted and thereafter applied to the electric rotating machine as a drive voltage, and a control function of setting a command current corresponding to one of two current components in a 2-phase coordinate system of the electric rotating machine in accordance with a command torque directed from outside, and thereafter determining command voltages corresponding to two voltage components of the 2-phase coordinate system on the basis of the command current and the input voltage of the power conversion circuit.

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Japanese Office Action dated Nov. 24, 2009, issued in corresponding Japanese Application No. 2008-135203, with English translation.

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