Self-charging strong excitation double transformer double-winding high-gain AC switched reluctance motor converter

Abstract

A self-charging strong excitation double transformer double-winding high-gain AC switched reluctance motor converter consists of four phase winding circuits, a rectifying output circuit, and an excitation and charging circuit, wherein two branch windings of each phase winding are in different circuits, the excitation is different, and the power generation output is different, moreover, the outputpolarities of adjacent phase winding circuits are alternated, the alternating current is directly obtained and the isolation, boost and rectification are carried out through the excitation and charging circuit, the output voltage and power are regulated by adjusting the switching tube on the phase winding circuit output side when necessary, the excitation and charging circuit can flexibly obtain the required excitation voltage and charge the storage battery automatically when necessary, the whole converter has the advantages of simple structure, multiple functions, and high intelligent degreeand is suitable for various types of variable speed wind electricity or the field of high-speed switched reluctance motor systems.

Description

technical field [0001] The invention relates to the field of switched reluctance motors, in particular to a switched reluctance motor power converter structure with high voltage gain AC output that can be self-charged, can strengthen excitation, and has variable excitation voltage and power generation voltage. Control Method. Background technique [0002] The structure of the switched reluctance motor is simple and strong, there is no winding on the rotor, no permanent magnet, the heat dissipation pressure is small, the reliability is high, and the manufacturing cost is low. The failure of one phase winding does not affect the normal operation of the other phase windings. It has strong fault tolerance and broad application potential. application prospects. [0003] Switched reluctance motors are generally composed of multiple phase windings symmetrically distributed on the salient poles of the stator, and each phase winding is mostly divided into two branch windings symmetr...

AI Technical Summary

Problems solved by technology

[0009] Regardless of the switched reluctance generator or the motor, the battery is often needed, and it often requires manual participation in charging or replacing the battery, which increases the workload of manual maintenance and reduces the level of intelligence. If it can be equipped with a self-charging function as needed, Then such a power converter is bound to increase the intelligence level of the system

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