Controllable rectification power generation system of permanent magnet doubly salient motor

2011 
The invention relates to a controllable rectification power generation system of a permanent magnet doubly salient motor, which belongs to special power generation systems. The power generation system comprises three major parts including a permanent magnet doubly salient generator, three-phase half-wave controllable rectification circuits and a rectification controller. Three-phase stator armature windings of the generator of the system adopt a star connection method, and the middle point of the winding is O. The other end of each of the stator armature windings A, B and C passes through the three-phase controllable half-wave rectification circuits for rectification and output, lower bridge arms of the controllable half-wave rectification circuits are insulated gate transistors, and upper bridge arms are diodes. According to different connection methods between the middle point O of the windings and the rectification circuits, the controllable rectification power generation system of the doubly salient motor can be developed to be in a middle point connection type and a middle point floating type. The rectification controller can emit driving signals corresponding to the insulated gate transistors when the electric potential of the windings of all phases is positive according to the position of a rotor of the generator, the current of an armature and rectification voltage signals, thereby enabling phase current to track phase voltage waveform and enabling the rectification circuits to perform rectification and power factor correction on the doubly salient generator.
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