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sbasami/DC-motor-model-identification.m

Last active March 25, 2020 09:05
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MATLABでDCモータのモデル同定を行うプログラム
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DC-motor-model-identification.m
clear all;
clc;
%エクセルファイルから入出力データの取り込み
FR.u = xlsread('DCmotor_FR_500Hz.xlsx',1,'B1:B15714');
FR.y = xlsread('DCmotor_FR_500Hz.xlsx',1,'D1:D15714');
FRdata = iddata(FR.y,FR.u,0.002); %IDDATA オブジェクトの作成
FRdata.InputName = '電圧 [V]'; %入力データの名前
FRdata.OutputName = '角速度 [rad/s]';%出力データの名前
figure(1), plot(FRdata);%入出力データの表示
FRdata_det = detrend(FRdata);%データの平均値を0にする
G1 = tfest(FRdata_det, 1, 0)%極が1、零が0のモデルを同定
G2 = tfest(FRdata_det, 2, 0)%極が2、零が0のモデルを同定
figure(2), compare(FRdata,G1, G2);%モデルの応答比較の表示
save('model_500Hz.mat','G1','G2')%変数の保存
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