Research On Excitation Control System Of Small Synchronous Generators

This text mainly studied the synchronous generator excitation system in with the semi-conductor commutate a machine for the excitation power unit is constituted together by numerical modulator of excitation of the static semi-conductor excitationequip.Elaborated the structure of that system to constitute and control process from the principle, from the theories and practice the method that the both side verified the excitation control system reformation.Main research the contents include the total structure project of the synchronous generator excitation control device,the excitation control the system hardware electric circuit design and the software design etc..The static semi-conductor excitation system has line of connect simple,the credibility is high,the investment is little,the usage is vivid,respond speed quick and easy to characteristics for maintain, have become the direction of the synchronous generator excitation development.But according to the modulator of excitation of the microprocessor with have the hardware structure is simple,in general use good,the software is vivid and can be convenient to carry out various functions and satisfy various control regulation of request etc. advantage, got an extensive application in the electric power system.The adoption numeral control technique and semi-conductor can control to commutate a technique, circulating the generator of way to the different capacity and the different excitation , as long as choosing the tube of the suitable capacity tube and modifying parts of softwares with can satisfy a request. According to this, this text studied the excitation by holding still the semi-conductor excitation system to replace together the stalk excitation machine excitation , replace to imitate the excitation modulator by the tiny machine excitation modulator, used for reforming the business enterprise self-provided electricity station small scaled synchronous generator set the excitation system, and from the machine set the reformation experiment test data carried on a verification.