Full bridge controllable power generating system employing doubly-salient generator and control method thereof

Abstract

The invention discloses a doubly salient generator full-bridge controllable power generation system, comprising a prime mover, a doubly salient generator, a rectification power circuit and a generator controller. The prime mover drives the doubly salient generator to rotate, and the doubly salient generator The excitation current of the generator is controlled by the generator controller; one end of each phase winding of the doubly salient pole generator is connected in star form to form the midpoint of the winding, and the other end of each phase winding is drawn out, respectively connected in series with the compensation capacitor Finally, connect the input end of the rectification power circuit, and the output end of the rectification power circuit is connected to the load through the filter capacitor to supply power to the load. This kind of power generation system can increase the output power of the motor, reduce the voltage adjustment rate, and make the control of the phase current more rapid and flexible. The invention also discloses a control method of the double-saliency generator full-bridge controllable power generation system.

Description

technical field [0001] The invention belongs to a special power generation system, in particular to a double salient motor controllable rectification power generation system and a control method thereof. Background technique [0002] The doubly salient pole motor is a typical variable reluctance motor, and its stator and rotor are both salient pole structures, so that the ratio of the maximum value to the minimum value of the reluctance is the largest, and it has good electromechanical energy conversion characteristics. The doubly salient motor has a simple structure and process, there is no winding on the rotor, and the motor runs stably and reliably. Doubly salient motors can be divided into permanent magnet doubly salient motors, electric excitation doubly salient motors and hybrid excitation doubly salient motors according to the excitation method. The electric excitation double salient pole motor changes the air gap magnetic field by adjusting the excitation current, a...

AI Technical Summary

Problems solved by technology

However, the external characteristics of the full-bridge controllable rectifier are relatively soft, and the voltage adjustment rate is relatively large; for a doubly salient motor with a large number of phase winding turns and a large armature inductance, the inductive reactance of the phase winding makes the full-bridge controllable rectification more effective for power generation The improvement of the motor power is relatively limited, and it is not conducive to the rapid and effective control of the armature current

Images