Esercitazione 7 Equazione di PF 2 soluzione

Pagina 1

Valori di riferimento Arif 150 10 6⋅:= Vat 132 10 3⋅:= Vmt 15 10 3⋅:= Zat Vat2 Arif := Zat 116.16= Zmt Vmt2 Arif := Zmt 1.5= Imt Arif 3 Vmt⋅ := Imt 5.7735 10 3×= Iat Arif 3 Vat⋅ := Iat 656.0799= Calcolo parametri p.u. linee L1 e L2 xl 0.32:= l1 100:= X1 xl l1 ⋅:= X1 32= x1pu X1 Zat := x1pu 0.2755= l2 15:= X2 xl l2 ⋅:= X2 4.8= x2pu X2 Zat := x2pu 0.0413= Calcolo parametri p.u. trafo At1 150 10 6⋅:= xt1 0.1 Arif At1 ⋅:= xt1 0.1= Impedenze xbd x2pu xt1 +:= xbd 0.1413= xab x1pu:= xab 0.2755= 1 Carico C1 Ac 50 10 6⋅:= cosf 0.8:= Pc1 Ac cosf⋅:= Qc1 Ac 2 Pc12−:= Pc1pu Pc1− Arif := Qc1pu Qc1− Arif := Pc1pu 0.2667−= Qc1pu 0.2−= Generatore Vgset 15.75 10 3⋅:= Vgpu Vgset Vmt := Vgpu 1.05= Pg 50 10 6⋅ Arif := Pg 0.3333= Matrice ammettenze rete completa ybd 1 j xbd⋅ := ybd 7.076= yab 1 j xab⋅ := yab 3.63i−= Y11 ybd yab+:= Y11 10.706i−= Y12 yab−:= Y12 3.63i= Y13 ybd−:= Y13 7.076i= Y21 Y12:= Y21 3.63i= Y22 yab:= Y22 3.63i−= Y23 0:= Y31 Y13:= Y31 7.076i= Y32 Y23:= Y32 0= 2 Y33 ybd:= Y33 7.076i−= Ycompl Y11 Y21 Y31 Y12 Y22 Y32 Y13 Y23 Y33 ⎛ ⎜ ⎜ ⎝ ⎞ ⎟ ⎟ ⎠ := Ycompl 10.706i− 3.63i 7.076i 3.63i 3.63i− 0 7.076i 0 7.076i− ⎛ ⎜ ⎜ ⎝ ⎞ ⎟ ⎟ ⎠ = load flow parte dx: solo saldo e nodo PE Vbass 138.6 10 3⋅:= db 0:= Vb Vbass Vat := Vb 1.05= Vd Vgpu:= dd 0:= Pd Pg:= Ammetenze Y ybd ybd− ybd− ybd ⎛⎜⎝ ⎞⎟⎠ := Y 7.076i− 7.076i 7.076i 7.076i− ⎛⎜⎝ ⎞⎟⎠ = vb Vb e jd b⋅⋅:= vb 1.05= vd Vd e jd d⋅⋅:= vd 1.05= sen Pg ybd Vb⋅ Vd⋅ := sen 0.0427= dd asin sen()d b +:= dd 180 π ⋅ 2.4489= vd Vd e jd d⋅⋅:= vd 1.049 0.0449i+= 3 Load flow parte sx Pa Pc1pu:= Pa 0.2667−= Qa Qc1pu:= Qa 0.2−= Y11 yab:= Y11 3.63i−= Y12 yab−:= Y12 3.63i= Y21 Y12:= Y21 3.63i= Y22 yab:= Y22 3.63i−= Y yab yab− yab− yab ⎛⎜⎝ ⎞⎟⎠ := Y 3.63i− 3.63i 3.63i 3.63i− ⎛⎜⎝ ⎞⎟⎠ = Y Y11 Y21 Y12 Y22 ⎛⎜⎝ ⎞⎟⎠ := Y 3.63i− 3.63i 3.63i 3.63i− ⎛⎜⎝ ⎞⎟⎠ = Va 1:= da 0:=…