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The transfer function of the open-loop voltage control loop under
the rated load condition |
22.2
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At ΔUтн = 100 V,
Uвыпр = 44.6 V.
Kвх-u= 44.6/100 ·2/4
Kтн = 100 / 24000 ; Ub = 24000/√3
By definition:
ΔUa* p.u. -
generator terminal phase voltage increment, so
KТН=ΔUтн/ΔUа✱=100 /√3) ;
Kосu = (44.6 / 100) ·(2/4)·(100/√3) = 12.
Total feedback regarding voltage and reactive current.
Using the LAFC diagrams (Fig. 11):
Gосu,р(p) = Kосu
+ Gоср(p)
= 12 · (1 + p · 0.003).
The transfer function of the open-loop voltage control loop under
the rated load condition (From Fig. 9.d):
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Gкн.р(p) = GБн(p) · Gэв(p) · G5
· GГ(p) · Gоси,р(p) |
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Below are the formulas and calculations for all
components of the voltage control loop open-loop transfer function,
along with references to the pages where specific calculations and
explanations are provided. |
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for GБН(p)
- pages 9.2; (19.1 - 20): |
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= |
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0.52·(1+p·0.156)·(1+p·0.5) |
| (1+p·0.6)·(1+p·0.03) 2 |
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G5 = 885 (page 12.1) |
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Gг(p)
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=
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(pages 14.3; 14.6) |
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Gоси,р(p) = 12 · (1 + p
· 0.003) (see the above) |
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