METHOD FOR DIAGNOSING MALFUNCTION IN POWER CONVERTER OF SWITCHED RELUCTANCE MOTOR BY METHOD OF PHASE CURRENT INTEGRATION

摘要

FIELD: electricity.;SUBSTANCE: in the method the presence of a short-circuit or an open-circuit failure of the main switch of the power converter of the switched reluctance motor is diagnosed by measuring the instantaneous value of the phase current i_O(t) of the mentioned converter in working order, as well as the instantaneous value of the current phase i(t) of the mentioned converter for obtaining an integral value S_nO of phase current by the integration operation during a certain period in working order and an integral value S_n of phase current during a certain period in the current state, the ratio E_n of which, i.e. E_n=S_n/S_nO, is the characteristic parameter of the fault.;EFFECT: improved accuracy of fault location determination.;6 dwg