Anti-demagnetization control method for deep well permanent magnet synchronous motor based on temperature rise model reconstruction
A permanent magnet synchronous motor, model reconstruction technology, applied in motor control, AC motor control, electronic commutation motor control and other directions, can solve the problems of motor protection, failure, slow demagnetization, etc., to prolong the service life, simple, convenient and reliable , The effect of preventing demagnetization
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[0032] Example 1
[0033] like Figure 1-2 As shown: the present invention provides a deep well permanent magnet synchronous motor anti-demagnetization control method based on temperature rise model reconstruction, comprising the following steps:
[0034] S1. Record motor temperature and winding temperature changes at 10-minute intervals according to room temperature and rated load conditions;
[0035] S2. Calculate the temperature rise of the motor at room temperature according to the temperature rise formula and draw the temperature rise curve;
[0036] S3. Calculate the corresponding theoretical temperature rise value under the current load and time according to the temperature rise reconstruction formula;
[0037] S4. Repeat the recording of time and running current according to the time interval;
[0038] S5. Redraw the temperature rise curve according to the calculated theoretical temperature rise and time point and store it in the form of a data table;
[0039] S6. ...
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