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Transformation of the general structural diagram of the control system |
21.1 |
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7.8. Transformation of the General Structural Diagram of the Control System
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Fig. 9 a, b, c, d show sequential stages of transformation of the structural diagram shown in Fig. 3. Transformations are carried out using known methods described in [L2] and [L5].
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7.8.1. Closed Inner Excitation Control Loop (Fig. 9b)
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Forward links:
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| Gв(p) = GБУ(p) · Gтп(p) = |
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· 9 · 10-4 · e-p · 0.0033 = |
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The pure delay link is not taken into account when analyzing static stability (stability under small disturbances occurring at low frequencies) or can be taken into account
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as an inertial link of the form |
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In dynamic stability (stability under large disturbances causing electromagnetic processes comparable in time with τ), all transfer functions of the control system are considered with an accuracy up to time interval τ. During this time, the system opens.
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Excitation feedback links (Fig. 9c):
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| (1 + p · 0.09)(1 + p · 0.024)(1 + p · 0.012) |
| 0.26 p |
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· |
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