Small And Medium-sized Turbine Generator Excitation Control System Design

The electrical industry has developed rapidly in our country with the development of the economy construction. In order to better ensure the economy operation and the electrical energy quality, the automatic control equipment needs to meet the higher requirement for the power system. The excitation system is one important part of the synchronous generator, which specially feeds the excitation supply for the synchronous generator.This text describes the static thyristor excitation system in accordance with the development of the excitation control system of the turbo-generator with less than 50mw. And it analyzes the regulator logic,thyristor on/off and its parameters selected, the calculation of the excitation transformer consumption and de-excitation resistor , the field breaker as well as rotating diode monitoring etc. in detail.This excitation system has integrated the excitation controller, the thyristor converter , de-excitation devise, field flashing device and over voltage protection devices into one cubicle. And it features the most simple hardware structure and the most plentiful software functions of the industrial microprocessor excitation control equipment with the better performance and the advanced technology regardless of at home or abroad. The product has been achieved verification.