Tema4 - y2 0 Continuous-time model. >> S12 =...

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3. Fiind date trei sisteme Si, i = 1 : 3, prin modelele lor de transfer, se scrie algoritmii si programele MATLAB de constructie a matricelor de transfer ale sistemelor rezultate prin interconectarea sistemelor date conform schemelor din fig.4.6. Algoritm: 1.S1 se reuneşte cu S2 folosind instrucţiunea append 2.sistemul nou format se leagă in serie cu S3 folosind comanda series 3.se leagă ieşirea la intrare 4.se aplica reacţia negativa Comenzi date in Matlab: >> S1 = tf(1, [2 3]) Transfer function: 1 ------- 2 s + 3 >> S2 = tf(1, [1 5]) Transfer function: 1 ----- s + 5 >> S3 = ss([1 2; 3 4], [-1 2; -3 -4], [-1 -2; -3 4], zeros(2)) a = x1 x2 x1 1 2 x2 3 4 b = u1 u2 x1 -1 2 x2 -3 -4 c = x1 x2
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y1 -1 -2 y2 -3 4 d = u1 u2 y1 0
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Unformatted text preview: y2 0 Continuous-time model. >> S12 = append(S2,S1) Transfer function from input 1 to output. .. 1 #1: -----s + 5 #2: Transfer function from input 2 to output. .. #1: 1 #2: -------2 s + 3 >> S123 = series(S12,S3) a = x1 x2 x3 x4 x1 1 2 -1 2 x2 3 4 -3 -4 x3 0 0 -5 x4 0 0 0 -1.5 b = u1 u2 x1 0 x2 0 x3 1 x4 0 0.5 c = x1 x2 x3 x4 y1 -1 -2 0 y2 -3 4 0 d = u1 u2 y1 0 y2 0 Continuous-time model. >> S0 = ss(,,,eye(2)) d = u1 u2 y1 1 y2 0 1 Static gain. >> S = feedback(S123, S0) a = x1 x2 x3 x4 x1 1 2 -1 2 x2 3 4 -3 -4 x3 1 2 -5 x4 1.5 -2 0 -1.5 b = u1 u2 x1 0 x2 0 x3 1 x4 0 0.5 c = x1 x2 x3 x4 y1 -1 -2 0 y2 -3 4 0 d = u1 u2 y1 0 y2 0 Continuous-time model....
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This note was uploaded on 11/05/2011 for the course AUTOMATIC 18 taught by Professor Corneliupopeea during the Spring '11 term at UPB Colombia.

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Tema4 - y2 0 Continuous-time model. >> S12 =...

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