Method for diagnosing standard deviation of detail coefficients of faults of power converter of switched reluctance motor
A technology of switched reluctance motors and power converters, which is applied in the direction of measuring electric variables, AC motor control, instruments, etc., and can solve the problems of stoppage, fault diagnosis methods that cannot be directly applied, and failure to make fault type judgments, and achieve good results. Good engineering application value, reliable effect of fault diagnosis
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[0014] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:
[0015] Such as figure 1 As shown, it is the main circuit of the three-phase switched reluctance motor double-switch power converter. Each phase of the three-phase double-switch power converter has two main switches and two freewheeling diodes, A phase, B phase, and C phase Connect in parallel to the positive pole "+" and negative pole "-" of the power supply. Among them, one end of the upper main switch S1 of phase A is connected to the positive pole "+" of the power supply, the other end of the upper main switch S1 is connected to one end of the winding of phase A, one end of the lower main switch S2 is connected to the negative pole "-" of the power supply, and the other end of the lower main switch S2 is One end is connected to the other end of the A-phase winding, one end of the upper freewheeling diode VD1 is connected to the positive pole "+" of the ...
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