Design Of Motor AGC Quality Control Method Based On Wavelet Analysis

Automatic Generation Control,also known as automatic control of Power System Frequency and active power(hereinafter referred to as AGC),refers to the electric generator in the specified output adjustment range,tracking the power dispatch system issued instructions,in order to meet the control requirements of power system frequency and tie-line power,the power output is adjusted according to a certain regulation rate.AGC is an important basic function in power dispatching automation system.The change of electric power of generators is not only due to the electromagnetic characteristics of generators,but also depends more on the load characteristics of power systems,and the signal deviation of load characteristics is difficult to control,this is the main reason that causes the frequency fluctuation of power system.In this paper,automatic generation control is the subject,and the motor AGC control based on wavelet analysis is the object.The quality control method is studied,and the quality control system based on wavelet analysis is designed and developed,the purpose is to provide an effective solution for the quality control of Motor AGC.In order to improve the precision of Wavelet Transform,this paper studies the wavelet transform algorithm,and uses the regression and analysis based on wavelet transform to analyze the quality control method of motor AGC based on wavelet analysis The model of Motor AGC quality control method is established,and wavelet analysis is carried out to improve the accuracy of the quality control method of motor AGC based on wavelet analysis.In this paper,the following four aspects of research:(1)the paper discusses the theory of wavelet analysis,explains the relation between wavelet analysis and Fourier Transform,and analyses the difference between them in the theory of signal analysis,the quality control method of motor AGC based on wavelet analysis is studied.(2)the quality control method of motor AGC based on wavelet analysis is discussed,and the wavelet transform is used to analyze and study it,and the related parameters are put forward,and the quality control scheme of ACG model parameters of motor automatic generation is made.(3)using Matlab / Simulink to establish the model of Motor AGC quality control based on wavelet analysis,and to simulate different speed conditions,so as to analyze its dynamic response.(4)the quality control method of motor AGC based on wavelet analysis is analyzed in the models of different speed conditions,and the signals are extracted,and the regression estimation of wavelet analysis is used to analyze the signals,the validity of the quality control method is verified.Based on the theory this paper discusses a method of AGC quality control based on wavelet analysis,analyzes and studies it,and obtains some ideas to solve the problem,some suggestions are put forward to reduce the frequency noise of power grid,and it is hoped to provide some improvements for the traditional quality control method of motor AGC,and provide important reference for the stability of power grid signal in the future.