Switched reluctance generator converter system with dual-port self-excitation and dual DC output

Abstract

The invention relates to a double-port self-excitation double-direct-current output switched reluctance generator converter system. The system comprises eight capacitors, eleven switching tubes, three-phase windings, eight diodes, three inductors and an isolation converter, wherein two paths of output are output through a double-generation loop at the generation stage of each phase winding, and when power is insufficient, a low-voltage output side and an excitation power supply are ensured preferentially, and the sacrifice of a high-voltage output side changes the wider operation range of thesystem. The power generation benefit is improved based on the strengthening of the excitation and broadening of the excitation range, and the dual-path excitation can be achieve by employing a simplestructure and through control. Besides, the staggered high-frequency switch control is employed, the electric energy quality at the high-voltage side is high, the isolation converter achieves isolation and improves the electric energy quality of the low-voltage side; and moreover, the whole system is simple in structure, convenient to regulate and control, various in function, high in adaptabilityand high in power generation benefit, and has a certain application value in the direct current user system in various power generation system fields.

Description

technical field [0001] The invention relates to the field of switched reluctance generator systems, in particular to a switched reluctance generator converter with dual-port high and low voltage adjustable excitation, high and low voltage dual output direct current and a control method thereof. Background technique [0002] The switched reluctance motor has simple structure, low cost, no winding on the rotor, and low heat dissipation pressure. As a generator, it has considerable application value. [0003] In many application fields of switched reluctance generators, the DC power directly sent out in the traditional sense often cannot meet the requirements, especially when it involves grid connection, several stages of boosting are required to meet the requirements; and, in some fields, different loads The required power sources are different, especially DC power sources of different voltages, which also need to be generated through special shunts. [0004] As a switched re...

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Problems solved by technology

[0003] In many application fields of switched reluctance generators, the DC power directly sent out in the traditional sense often cannot meet the requirements, especially when it involves grid connection, several stages of boosting are required to meet the requirements; and, in some fields, different loads Different power supplies are required, especially DC power supplies with different voltages, which also need to be generated by special shunts

[0004] As a switched reluctance generator, it is a development trend to choose the self-excitation mode as the excitation method, which reduces a lot of manual maintenance workload. However, when the external mechanical power is unstable, the self-excitation power supply will also be affected, which will affect its excitation capability. , even had to shut down

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