Power generation system

Abstract

A power generation system is composed of a DC generator, a diesel engine, a transmission and a switched reluctance generator system which are coaxially connected. The switched reluctance generator system is composed of a switched reluctance generator converter, a controller and a detection device. The detection device detects and inputs all kinds of information in the switched reluctance generatorconverter to the controller. The controller outputs a control signal to drive each switching tube in the switched reluctance generator converter. The switched reluctance generator converter is composed of eight switching tubes, twenty diodes, five capacitors, two reactors, three transformers and four phases of windings. Every two phases of windings constitute a converter synthesized with a single-phase inverter circuit for the excitation and power generation of a switched reluctance generator. Multiple AC and DC power outputs are obtained through time-sharing control on the eight switching tubes according to the position information of the rotor, and the quality of power is high. The power generation system is applicable to the field of independent power generation systems in areas without power supply.

Description

technical field [0001] The present invention relates to the field of power generation systems, in particular to a power generation system with multi-AC / DC power output and a control method thereof in which an independent diesel-driven switched reluctance generator system and a DC generator are combined with a complementary simple multifunctional variable current structure . Background technique [0002] In some active islands without grid access, as well as field engineering construction in areas such as plateau uninhabited areas and deserts, power sources are required, and there are also backup power sources for some important departments in cities. Most of them use diesel-powered generator sets, but they often Only one constant power supply can be output. [0003] 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. [0004] In the application of ma...

AI Technical Summary

Problems solved by technology

[0005] The converter of the switched reluctance generator system is the heart of its work. In order to achieve different functions and different power outputs, it is often necessary to design different converter systems. The use of a large number of switching tubes, especially high-frequency switches, is extremely It greatly increases the control complexity, increases the switching loss, increases the cost, and reduces the reliability; in addition, the switched reluctance generator needs one excitation power supply when it is working. The traditional self-excitation mode has a simple structure but the output power fluctuates greatly. The work is unstable, and heavy batteries are required in the separate excitation mode, which also increases the workload of manual maintenance, and it is unrealistic to replace the batteries in the field for a long time; therefore, there is a big challenge for the introduction of switched reluctance generators into diesel generator sets , and this occasion also requires the converter system to be as simple in structure as possible, easy to control, reduce the workload of manual maintenance, minimize switching loss and improve its reliability, etc.

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