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The Research Of Control System For VSCF Tideway Generation System

Posted on:2005-05-21Degree:MasterType:Thesis
Country:ChinaCandidate:S Y YangFull Text:PDF
GTID:2132360125970722Subject:Power system and its automation
Abstract/Summary:PDF Full Text Request
Conventional constant speed constant frequency(CSCF) tideway generation electricity system always takes up dominant station in tideway generation electricity system. Due to the rotated speed of generator of CSCF need constant, hydraulic pressure motor machine compel it, the efficiency of tideway energy is lower ,the price of electricity is higher, and the invest of hydraulic pressure motor is very high. These aren't benefit of extend use of tideway energy. People manage to explore more quiet, high efficient and reliability, big stand-alone capability tideway generation electricity system. Variable speed constant frequent(VSCF) tideway generation electricity system alters the complexion. I introduce several generators with superiority technology in VSCF tideway generation electricity system and their development status simply. At last I discuss scheme which is VSCF tideway generation system with AC to DC to AC as main circuit in detail.I design control system by utilizing SA4828 chip, main circuit is made up of Intelligent Power Module(IPM). These years along with the development of power-electronics technique and micro-control technique, IPM is characterized by small volume, light weight, high efficiency, low noises, big stand-alone capability and reliability appeared and matured. So it can be competent for all operation demand.This paper presents a solution to VSCF tideway generation electricity system. I research the compose of main circuit of tideway generation electricity system, control disciplinarian and control scheme. MATLAB software imitates the scheme. During imitation, I introduce the model of every module. All models are made up of integrated model of VSCF tideway generation electricity system. The result which is gained by the model proves the feasible scheme. During design hardware circuit and system software, I advance arithmetic of PID and median filter, andoffer program flow chart. The outcome of experimentation also proves the scheme is feasible.At last ,it drew a conclusion that summarized the design thought of VSCF tideway generation electricity system after observed waves of experiment circuit. VSCF tideway generation system can become main control scheme in tideway generation electricity system field ,and the research have comprehensive application worthiness.
Keywords/Search Tags:SPWM, Hydraulic turbine generator, Variable speed constant frequency, Tideway generation electricity
PDF Full Text Request
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