Exercise 1 A three phase, 400 kV, 50 Hz, 1000 km long line is operating with VS =VR = V = 1.0 p.u. and 8=45°. A SVC is planned to be connected at the midpoint of the line to increase power transfer capability. The control range correspond to = 1200⁰. 1) Find the SVC susceptance Bvc if the slope (Xs) of the control characteristic is 0.05 p.u. 2) Find the reactive power drawn by SVC, Qsrc which is also the reactive power injected into the bus. 3) Draw the characteristic of the SVC and determine the operating point (Vsvco, Isvco) (Data: Zn = 200 ohms, B=0.06°/km). 0 = ßl, V V=Vmo-XTI, V = Vref +X,I,, BSvC Exercise 2 1) Draw the block diagram of the STATCOM 2) Give the operating mode of the STATCOM. 3) Draw the V-I characteristic of the STATCOM V SVC > = 8 V cos- COS 2 7 0 2 2svc=-Vvc Bsvc XTh SV - Z 2 tan 0 2 4) The basic building block of a high power GTO based STATCOM is a six pulse circuit shown in Fig. 1

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ISBN:9780133923605
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Publisher:Robert L. Boylestad
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Exercise 1
A three phase, 400 kV, 50 Hz, 1000 km long line is operating with VS =VR = V = 1.0 p.u. and
8=45°. A SVC is planned to be connected at the midpoint of the line to increase power transfer
capability. The control range correspond to d=120°.
1) Find the SVC susceptance Byc if the slope (Xs) of the control characteristic is 0.05
p.u.
2) Find the reactive power drawn by SVC, Qsrc which is also the reactive
into the bus.
power injected
3) Draw the characteristic of the SVC and determine the operating point (Vsvco, Isvco)
(Data: Zn = 200 ohms, B=0.06°/km). 0 = ßl, Vm
Vm=Vmo-XThr, Vm = Vref +XI,, BSvC
-1,
SVC
"
8
V cos-
COS
2
0
2
2svc=-Vvc Bsvc
XTH = tan
SVC
0
Exercise 2
1) Draw the block diagram of the STATCOM
2) Give the operating mode of the STATCOM.
3) Draw the V-I characteristic of the STATCOM
4) The basic building block of a high power GTO based STATCOM is a six pulse circuit
shown in Fig. 1
Transcribed Image Text:Exercise 1 A three phase, 400 kV, 50 Hz, 1000 km long line is operating with VS =VR = V = 1.0 p.u. and 8=45°. A SVC is planned to be connected at the midpoint of the line to increase power transfer capability. The control range correspond to d=120°. 1) Find the SVC susceptance Byc if the slope (Xs) of the control characteristic is 0.05 p.u. 2) Find the reactive power drawn by SVC, Qsrc which is also the reactive into the bus. power injected 3) Draw the characteristic of the SVC and determine the operating point (Vsvco, Isvco) (Data: Zn = 200 ohms, B=0.06°/km). 0 = ßl, Vm Vm=Vmo-XThr, Vm = Vref +XI,, BSvC -1, SVC " 8 V cos- COS 2 0 2 2svc=-Vvc Bsvc XTH = tan SVC 0 Exercise 2 1) Draw the block diagram of the STATCOM 2) Give the operating mode of the STATCOM. 3) Draw the V-I characteristic of the STATCOM 4) The basic building block of a high power GTO based STATCOM is a six pulse circuit shown in Fig. 1
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