Self-charging forced excitation dual-transformer dual-winding high-gain AC switched reluctance motor converter

Abstract

Self-charging forced-excited double-transformer double-winding high-gain AC switched reluctance motor converter, which is composed of four phase winding circuits, rectification output circuit, excitation and charging circuit; the two branch windings of each phase winding are in different loops to realize The comprehensive technology of differential excitation of different branch windings of the same winding and series boosting of power generation output; and by using the same circuit structure to make adjacent different phase windings output alternately and reversely, it solves the problem that the switched reluctance generator cannot directly output alternating current. The inverter link required by the AC load is omitted; the output voltage and power can be adjusted by adjusting the output side switch tube of the phase winding circuit, that is, the power generation voltage can be adjusted; the excitation and charging circuit can provide the required excitation voltage while automatically giving the battery The dual function of charging; therefore, the whole converter has a simple structure, various functions and a high degree of intelligence, and is suitable for various variable-speed wind power or high-speed switched reluctance motor system fields.

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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