Method, computer program product and controller for starting-up a switched reluctance motor, and electrical apparatus implementing same

There is disclosed a method of starting-up a switched reluctance, SR, motor (100) having a rotor (110) and a stator (120), wherein the stator has a plurality of coils (121, 122,123,124), wherein electrically coupled coils form a plurality of phases with at least a first phase (A) and a second phase (B). The method comprises simultaneously energizing (51 ) the plurality of phases at a first time point with respective phase voltages that are substantially the same, until the rotor is stabilized in alignment with either one of the plurality of phases; simultaneously de-energizing (52) the plurality of phases at a second time point that follows the first time point; monitoring (53) a decrease of respective phase currents in the plurality of phases from a third time point that follows the second time point by a first predetermined time interval; determining (55) a phase of alignment of the rotor using evaluation (54) of the decrease of the phase currents following simultaneous de- energizing of the plurality of phases; and, initiating (56) rotation of the rotor from the determined phase of alignment of the rotor.