53 lines
1 KiB
Python
53 lines
1 KiB
Python
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import numpy as np
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import matplotlib.pyplot as plt
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import PyQt5 as qt
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# Vn = 4e5 # En V
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def make_Y(n):
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Y = np.zeros((n, n))
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return Y
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def connect_Y(x, y, Ys, Yp, Y):
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Y[x, y] = -Ys
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Y[y, x] = -Ys
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Y[x, x] += Ys + Yp
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Y[y, y] += Ys + Yp
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def spec(n, Y, Vn):
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S = np.zeros((n, n))
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for i in range(n):
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for k in range(n):
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if i == k:
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S[i, k] = n
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else:
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S[i, k] = -1
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S[i, k] *= Vn**2 * Y[i, k]
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return S
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def delta_select(i, S):
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for k in range(len(S)):
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S[i, k] = 0
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Y = make_Y(4)
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connect_Y(2, 3, 0.1, 0, Y)
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connect_Y(1, 3, 0.15, 0, Y)
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connect_Y(2, 1, 0.05, 0, Y)
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connect_Y(2, 0, 0.05, 0, Y)
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connect_Y(3, 0, 0.05, 0, Y)
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print("Admittance matrix :")
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print(Y)
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S = spec(4, Y, 2e5)
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print("System matrix :")
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print(S)
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invS = np.linalg.inv(S)
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print(invS)
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P = np.array([1000, -500, -250, -250])
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P = P * 1e6
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print("Power input :")
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print(P)
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delta = np.dot(invS, P)
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print("Delta (rad) :")
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print(delta)
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print(delta * 180 / 3.1415)
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