Compensation method for rotor position angle of permanent-magnet motor
A technology of motor rotor and position angle, applied in the direction of electronic commutator, etc., can solve the problems of not being suitable for electric vehicles and hybrid vehicles, affecting the normal operation of electric vehicles and hybrid vehicles, etc.
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[0013] like figure 1 As shown, the compensation method for the rotor position angle of the permanent magnet motor in this embodiment includes the following steps:
[0014] S101: Utilize a resolver coaxial with the permanent magnet synchronous motor to sample the rotor position angle of the permanent magnet synchronous motor at specific time intervals;
[0015] S102: Perform calculation processing on the output signal of the resolver sensor by the digital signal processing unit;
[0016] S103: Judging the change of the motor rotor position angle, if the change of the motor rotor position angle value is within the allowable range, execute step S104, otherwise execute step S105;
[0017] S104: Use the motor rotor position angle value directly as a correction value for the current position angle of the motor rotor to correct;
[0018] S105: Compensating the motor rotor position angle delay deviation;
[0019] S106: Use the compensated motor rotor position angle value as a corre...
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