Front-end integrated multi-port power converter of switched reluctance motor

Abstract

The invention discloses a front-end integrated multi-port power converter of a switched reluctance motor, and is suitable for the technical field of switched reluctance motor control. The converter iscomposed of a front-end integrated power supply circuit and a plurality of bridge arm units. The front-end integrated circuit is composed of a storage battery pack, a photovoltaic panel power supply,two insulated gate bipolar transistors, an energy storage capacitor and three fly-wheel diodes, each bridge arm is composed of two insulated gate bipolar transistors and two fly-wheel diodes, and thenumber of the bridge arms is the same as the number of phases of the switched reluctance motor. A complex control strategy is not needed, and the structure is simple; compared with a traditional power converter, the power converter of the invention achieves combined power supply of the photovoltaic panel power supply and the storage battery pack, charges the storage battery pack flexibly while increasing the direct-current bus voltage, and increases the electric energy utilization rate; and multi-level excitation and demagnetization are realized during single-source power supply, the excitation and demagnetization processes are accelerated, and the overall efficiency of the system is improved.

Description

technical field [0001] The invention relates to a switched reluctance motor front-end integrated multi-port power converter, which is especially suitable for use in the technical field of switched reluctance motor control. Background technique [0002] With the growth of the world's population and the rapid development of the modern social economy, the society's demand for energy is also increasing. Human beings are facing the problem of increasing energy demand and decreasing existing energy. Countries around the world are working hard to solve this contradiction. In recent years, governments and organizations around the world have vigorously promoted the development of renewable energy and improved the energy structure. On the other hand, by improving the efficiency and quality of energy production, transformation and consumption, they have eliminated excessive energy production capacity and increased effective utilization. . [0003] In the cost of the entire switched re...

AI Technical Summary

Problems solved by technology

The other uses a DC / DC converter to drive a switched reluctance motor to improve DC voltage and speed dynamic response, while the additional use of inductors and capacitors reduces power density

There is also an electric energy storage type power converter, due to the presence of non-isolated phases in the circuit, its fault tolerance is poor, and it cannot achieve the purpose of increasing the DC voltage

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