Permanent magnet synchronous motor (PMSM) rotor position detection and initial position calibration method
A technology of rotor position detection and permanent magnet synchronous motor, which can be used in the control of generators, motor-generator control, control of electromechanical transmissions, etc., and can solve problems such as limitations
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0044] figure 1 It is the diagram of the structure of the incremental gear encoder and the installation relationship with the permanent magnet synchronous motor. The incremental gear encoder is composed of an induction head 2 and an encoder induction gear 3. The encoder induction gear 3 is installed on the permanent magnet synchronous motor shaft 4 and rotates synchronously with the permanent magnet motor shaft 4 and the motor rotor 5. The induction head 2 of the sensor is installed on the rear end cover 1 of the motor and maintains a fixed relative position with the stator 6 of the motor in space.
[0045] figure 2 It is a schematic diagram of the absolute position detection principle of the permanent magnet motor rotor of the present invention. The rotor 5 and the stator 6 of the permanent magnet motor are projected onto the plane 7 where...
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