A novel doubly salient generator with fully pitched winding structure

Conventional short-pitched winding switched reluctance machine realizes the electromechanical energy conversion by utilizing only the rising region of phase inductance at motoring mode, or the descending region of phase inductance at generating mode. Compared with the conventional switched reluctance machine, the fully-pitched winding machine realizes the electromechanical energy conversion by utilizing both the rising and the descending regions of the mutual inductances among the phase windings. Thus, the fully-pitched winding switched reluctance machine shows more advantageous than the conventional switched reluctance machine. This paper proposes a novel generating control strategy of a three-phase fully-pitched winding switched reluctance machine, by introducing the generating operation principle of doubly salient electromagnetic machine into fully-pitched winding switched reluctance machine. With the novel control strategy, the fully-pitched winding doubly salient generator can afford convenient voltage-adjustable control without rotor angular position sensor. It is of low cost, high reliability, favorable voltage control, and shows great competitive in the applications, such as wind power generation, wave energy generation, flywheel energy storage, etc. The simulation and test results verify the novel strategy of fully-pitched winding doubly salient generator.