Permanent magnet synchronous motor control method based on sliding mode load torque observer
A technology of load torque and permanent magnet synchronization, applied in the direction of motor generator control, electronic commutation motor control, control system, etc., can solve the problems of poor control effect and slow speed response, reduce sliding mode chattering, improve Reliability, the effect of reducing the arrival time of the sliding surface
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[0056] The present invention will be described in detail below with reference to the drawings and specific embodiments.
[0057] The permanent magnet synchronous motor control method based on the sliding mode load torque observer disclosed in the present invention aims to solve the problems of slow speed response and poor control effect of the permanent magnet synchronous motor under complex working conditions such as load disturbance, so as to achieve permanent Accurate control of magnetic synchronous motors. At the same time, the control method provides a sliding mode load torque observer to observe the load torque of the permanent magnet synchronous motor, so that the permanent magnet synchronous motor has a fast speed response when the load changes. The biggest feature of the sliding mode observer is that it uses a smooth reaching law to replace the traditional reaching law composed of symbolic functions, and introduces a sliding mode chattering suppression factor to suppress...
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