Self-adaption method of zero compensation detection of rotary transformer of permanent magnet motor
A resolver and permanent magnet motor technology, which is applied in the control of generators, motor generators, electromechanical brakes, etc., can solve the problems of permanent magnet motor torque accuracy deviation, waste of manpower and material resources, and system control out of control, so as to improve the accuracy and system security, saving manpower and material resources
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[0028] Such as figure 1 and figure 2 As shown, the self-adaptive method for detecting zero position compensation of the permanent magnet motor resolver of the present invention includes the following steps:
[0029] Step 1. The power module 1 drives the permanent magnet motor 6 to run through the inverter 2. The micro-control processor 8 detects the rotational speed, the direction of rotation and the position of the rotor 61 of the permanent magnet motor 6 through the resolver 7. The DC bus of the power module 1 is provided with a first The current sensor 5, the V phase and the U phase of the permanent magnet motor 6 are respectively provided with the second current sensor 3 and the third current sensor 4, and the preset CLARK transformation algorithm and the PARK transformation algorithm are preset in the software algorithm module 81 of the microcontroller processor 8;
[0030] Step 2. During the operation of the permanent magnet motor 6, the current Idc of the DC bus of th...
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