Control apparatus of rotating electrical machine
AssigneeMitsubishi Electric Corporation
InventorsHiroyuki KOBAYASHI, Yasufumi OGAWA, Keiichi ENOKI
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Abstract
A phase difference between an inductive voltage of an armature winding of a rotating electrical machine and an output of a magnetic pole position sensor is detected by a phase difference detection unit. The output of the magnetic pole position sensor is corrected on the basis of the phase difference thus detected and a power conversion unit is controlled on the basis of the corrected output.
Claims9
A control apparatus of a rotating electrical machine controlling a rotating electrical machine configured in one of manners so as to drive a drive wheel of a vehicle and to be driven by the drive wheel, comprising:
- a power conversion unit that performs power conversion between an outside DC power supply and an armature winding of the rotating electrical machine;
- a magnetic pole position sensor that generates an output used to detect a position of a magnetic pole of a rotor of the rotating electrical machine;
- and
- a controller that controls the power conversion unit on the basis of the output of the magnetic pole position sensor, wherein:
- the controller includes,
- a phase difference detection unit that detects a phase difference between an inductive voltage of the armature winding of the rotating electrical machine and a detection phase based on the output of the magnetic pole position sensor, and
- a phase difference correction unit that corrects the detection phase on the basis of the phase difference detected by the phase difference detection unit and generates an output of the corrected phase difference;
- and
- the controller controls the power conversion unit on the basis of the output of the phase difference correction unit.
A control apparatus of a rotating electrical machine controlling a rotating electrical machine configured in one of manners so as to drive a drive wheel of a vehicle and to be driven by the drive wheel, comprising:
- a power conversion unit that performs power conversion between an outside DC power supply and an armature winding of the rotating electrical machine;
- a magnetic pole position sensor that generates an output used to detect a position of a magnetic pole of a rotor of the rotating electrical machine;
- and
- a controller that controls the power conversion unit on the basis of the output of the magnetic pole position sensor, wherein:
- the controller includes,
- a current control unit that controls a current flowing to the armature winding of the rotating electrical machine according to a d-axis current command value and a q-axis current command value,
- a phase difference detection unit that detects a phase difference between the position of the magnetic pole of the rotating electrical machine and a detection phase based on the output of the magnetic pole position sensor according to a d-axis voltage command value and a q-axis voltage command value for the rotating electrical machine when the d-axis current command value and the q-axis current command value are set to 0, and
- a phase difference correction unit that corrects the detection phase on the basis of the phase difference detected by the phase difference detection unit and generates an output of the corrected phase difference;
- and
- the controller controls the power conversion unit on the basis of the output of the phase difference correction unit.
Dependencies are inferred from the claim text.