Multi-mode voltage transformation switched reluctance generator converter system and regulation and control method thereof

Abstract

The invention discloses a multi-mode voltage transformation switched reluctance generator converter system and a regulation and control method thereof. The converter system is composed of three capacitors, ten diodes, ten switch tubes, a three-phase winding, a storage battery and an inductor. A first capacitor side, the storage battery and a third capacitor side are intercommunicated and controllable as three power supplies, and can form four intercommunicated power supplies with the winding during work. There is no isolation link, and the system has a common ground. Through control over the ten switch tubes, important functions such as direct high power generation voltage output, wide-range continuous excitation voltage change and strong excitation, variable power generation voltage, mutual communication among three power supplies, and common output of electric energy by the storage battery, the first capacitor and the phase winding when necessary are achieved, the application range of the converter system is widened, and the system has high utilization rate, flexibility, fault tolerance and adaptability, low cost and high benefit. The system is applicable to the field of variousswitched reluctance generator systems driven by various types of power.

Description

Technical field [0001] The invention relates to the field of switched reluctance motor systems, in particular to a switch reluctance with high adaptability and flexibility with a compound structure and control method of three power sources intercommunication, multiple working modes and working states, variable excitation voltage and generating voltage and control method Generator converter system and its control method. Background technique [0002] The structure of the switched reluctance motor is simple and firm, there is no winding on the rotor, the cost is low, and it has a broad application prospect. [0003] During the operation of the switched reluctance generator, it is necessary to select the phase windings to be energized according to the relative positional relationship between the salient poles of the stator and rotor. Each phase winding is energized in time according to the relative positional relationship of the stator and rotor. The interior is subdivided into two m...

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Problems solved by technology

[0010] In the field of switched reluctance generator systems, efficiency issues are always of great concern. In the operation of each phase winding of switched reluctance generators, avoiding entering the motor working condition to reduce efficiency is also a problem that needs to be studied, especially in the power generation stage in the traditional way. In the end, it is based on the fact that the inductance of the winding between the stator and the rotor reaches the lowest point, and the current can drop faster under the action of the reverse voltage because of the minimum flux linkage. However, it is very difficult to avoid that the rotor has entered the electric working area at this time, especially in the middle Switched reluctance generator at high speed operation, resulting in low power generation efficiency and damage to torque ripple

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