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Capacitancia en lineas aereas de transmision
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2010 International Conference on Power System Technology
Transmission-Line Theory based Study on Voltage Distribution along the Line and the Disposition Scheme of Series Capacitors of UHV Transmission Lines with Series Capacitors
Xiaohui Qin Member, IEEE, Hong Shen, Qinyong Zhou, Qiang Guo, Bin Zheng, Zutao Xiang, Liangeng Ban
Abstract-- In this paper, the transmission-line theory based fast
algorithm for voltage distribution along the UHV transmission
line with series capacitors is proposed. Firstly, the two-port
transmission parameter matrix of UHV transmission lines is
transformed to the two-port node admittance matrix, therefore,
the lumped parameters of strict equivalent 7t model for UHV
transmission line is obtained. Secondly, the parameters are filled
into the commercial power flow software to calculate the power
flow of the target grid which includes the UHV transmission lines
with series capacitors. Thirdly, the power flow calculation results
are regarded as the terminal conditions of the UHV lines with
series capacitor, and the transmission parameter matrix is used to
calculate the voltage distribution along the line rapidly. In the
algorithm, the voltage distribution along the line is obtained
accurately; moreover, the reactive power supply capacities of
both sides of the UHV lines with series capacitors can be taken
into account, which implies that the engineering applicability of
the proposed algorithm is very strong. At last, the relative
disposition scheme of UHV series capacitors and UHV line shunt
reactors as well as the centralized/distribution layout scheme of
UHV series capacitors are investigated, and some useful
conclusions are drawn. According to the proposed algorithm and
the conclusions, the guidance suggestion is given for the UHV
series capacitors schemes of 'Wand ian Dongsong' UHV
transmission project and 'Ximeng Waisong' UHV transmission
project.
Index Terms-- UHV Transmission Lines, UHV Series
Capacitors Transmission-Line Theory, Voltage Distribution,
Disposition Scheme.
I. INTRODUCTION
Installing series capacitors (SCs) on EHV (220� 765kV)
and UHV lines could enhance the transmission capacity and
affect such issues as the steady-state voltage distribution
characteristics [1 ]-[3], [19]-[20]. Generally, the voltage at each
site should not be higher or too lower than the maximum
system operation voltage. Therefore, it is necessary to take
various influencing factors into consideration to study the
operation voltage characteristics of the series compensation
lines [11]-[12]. Currently, both domestic and overseas
researchers have studied on the steady-state operation voltage
distribution characteristics of EHV SC lines, and concluded
that the installation sites of the SC and shunt reactors (SRs) as
well as the series compensation degree and the active power
capacity can affect the voltage distribution characteristics[4]
[5], [9], [16]. However, past research did not consider the
reactive power configurations in actual projects and did not
This work was supported in part by the State Grid Corporation of China. X. H. Qin and other authors are all with Power System Department, China
Electric Power Research Institute, Beijing, 100192, China (e-mail: q [email protected]).
978-1-4244-5940-7/1 0/$26.00©2010 IEEE
conduct special research on the UHV series compensation
power transmission system either.
The UHV power transmission technology has great
application foreground in China [6], [13]. The transmission
capacity of UHV transmission lines can be improved
dramatically by applying the UHV SCs. And obtaining the
voltage distribution along the transmission line is very
important to decide the scheme of UHV SCs. The current
relative algorithms are electromagnetic calculation and the
approximate multi-section line power flow calculation. But the
former can not take account of the reactive power supply
capacities of both sides of UHV transmission lines, and the
latter is a hard and approximate method, and its power flow
convergence characteristic is poor due to increment of zero
injection nodes numbers. Therefore, a novel fast algorithm
based on transmission theory is proposed in the paper to obtain
the voltage distribution along the UHV line with SCs. The
relative study tools include PSD-BPA and MA TLAB [7]-[8], [14].
II. TRANSMISSION-LINE THEORY
According to the sine wave steady solution of the uniform
transmission line, the voltage and current of the point which is
I distant from the terminal end of the line is as follows:
. . U 1u = U 2ch(rt) + i?zcsh(rt)
/ = f2ch(rt) + _2 sh(rt) Zc
Where,
Z _�o c- Yo
r=JzoYo ==a+ jf3
(1)
(2)
(3)
The constant Zc is called the characteristic impedance, y is
called the propagation constant, Zo is the series impedance per
unit length/phase, Yo is the shunt admittance per unit
length/phase.
The constant y and Zc are complex quantities. The real part
of the propagation constant y is called the attenuation constant
a, and the imaginary part is called the phase constant p. The transmission line can be regarded as a two-port network
shown in Fig.l.
i 2
u, j 0,
Fig.1 The two-port network of transmission line
Formula (1) is rewritten as matrix form
[U1] =[ �h(rf) jZCSh(rf)][ U2]
j j-sh(rf) ch(rf) _ j 1 Zc 2
The transmission parameter matrix is [ ch(rf) jZcSh(rf)] T = j_l sh(rf) ch(rf)
Zc where,
A = ch(rf) B = jZcsh(rf)
C = j_I sh(rf) Zc
D = ch(rf)
(4)
(5)
(6)
According to the two-port network theory, the two-port
network in Fig.l can be transformed into the n type two-port
network shown in Fig.2.
Z,q 0
! Y"
c::=:::J
! Y"
0
Fig.2 The n type equivalent model of transmission line
In Fig.2, the equivalent parameters are
Zeq = B
y'q =(A-l) / B=(D-I) / B (7)
The above equivalent model and equivalent parameters are
absolute strict under element frequency, which can be used in
the power flow calculation and transient stability calculation
directly. In formula (4), (A-I)/B indicates the admittance of the
right branch to ground and (D-I)/ B indicates the admittance of
the left branch to ground in Fig.2.
III. THE PROPOSED ALGORITHM AND ITS PROCEDURE
Based on the transmission line theory described in part I, a
novel algorithm for voltage distribution along the line of the
UHV transmission lines with SCs is proposed.
Double circuit transmission Single circuit Double circuit transmission
line on same tower, transmission line, line on same tow!.'!,
I champaign region
I mOWltainous region
I mountainous region
. .. 1'." 1'." Circuit Capacitor I h I 1:1 I 13 Breaker : : :
Bus Shunt
Reactor
Fig.3 The schematic ofUHV transmission lines with SCs
Fig.3 shows a UHV transmission line with series capacitor.
In the figure, the series capacitor is disposed at the beginning
end of UHV transmission line, and the line shunt reactor of the
beginning end is closer than capacitor from substation buses.
The UHV transmission line consists of three sections whose
lengths are I], 12, 13 respectively. The tower-line conditions of
the three sections are double circuit transmission line on same
tower (champaign region), single circuit transmission line
(mountainous region) and double circuit transmission line on
same tower (mountainous region) respectively, therefore, the
parameters per unit length/phase (zo yo) and the propagation
constants y of the three sections are different.
Double circuit transmission Single circuit Double circuit transmission
line on same tower, transmission line, lillC on same tower,
I champaign region
I mountainous region
I mountainous region
Circuit Capacitor .. i1 I' II 12 .. .. 13 -ICircuit Breaker : Zeq I : Zeq2 : Zeq3 :8 reake
Bus Yeql Yeql Yeq2 Yeq
Fig.4 The equivalent circuit ofUHV transmission lines with SCs
According formula (5-7), the equivalent parameters (Zeql ,
Yeq], Zeq2, Yeq2, Zeq3, Yeq3) for three sections are calculated, and
the equivalent circuit is given in FigA.
y,. y,.
.Circuit :Breake
Fig.S The final simplified equivalent circuit of the whole UHV transmission lines with SCs
For the sake of convenience, the final simplified equivalent
circuit for the whole transmission line including three sections
is given in Fig.5. Actually, the n type equivalent circuit for the
whole transmission line is just the cascade connection of the n type equivalent circuits of three sections; therefore, the
transmission parameter matrix T for the whole HUV
transmission line is the product of the transmission parameter
matrices(T" T2, T3) for the three sections.
(8)
(9)
(10)
- [ ch(Y313) jZc3Sh(Y3/3)] T3 - j _l- sh(Y313) ch(Y3/3)
ZC3 (11)
Then, the procedure of the proposed algorithm is illustrated
below:
1) The transmission parameter matrix T for the whole HUV
transmission line is calculated in terms of Eqs.(8)-( 11).
2) After T is obtained, the equivalent parameters (Zeq, Yeq) in
figA can be calculated according to formula (7).
3) The equivalent parameters (Zeq, Yeq) of the IT type
equivalent circuit for the whole transmission line are filled into
the commercial power flow software(such as PSD-BPA,
PSASP) to calculate the power flow of the grid which includes
the UHV transmission lines with SCs.
4) The voltage and the current of the terminal end of UHV
line with series capacitor are picked up in the power flow
calculation results, and are regarded as the terminal conditions.
It should be pointed out that the load of the terminal end of
UHV line is the sum of power flow through terminal end
circuit breaker and reactive power flow through terminal end
shunt reactor, and the terminal current can be calculated by
terminal load and terminal voltage easily.
5) According to the terminal conditions and Eqs. (4)-(5), the
transmission parameter matrices (T, T], T2, T3) are used to
calculate the voltage distribution along the line rapidly. T can
be used to verify the beginning end voltage, T], T2, T3 can be
used to obtain the voltage distribution along the line and the
boundary voltage of the three sections.
The advantage of the proposed algorithm is described below:
The voltage distribution along the line is obtained accurately
and conveniently; moreover, the reactive power supply
capacities of both sides of the UHV lines with SCs can be
taken into account, which implies that the engineering
applicability of the proposed algorithm is very strong.
IV. THE DISPOSITION SCHEME OF SERIES CAPACITORS
In this section, two problems are discussed and investigated.
One is the relative disposition scheme of UHV SCs and UHV
line SRs [101; the other is the centralized/distributed layout
scheme ofUHV SCs.
For the first problem, the relative disposition scheme of
UHV SCs and UHV line SRs is shown in Fig.6.
Circuit Capacitor Breaker
Bus Shunt Reactor
�
acitor
I
B""''' I
Bus
(a) (b)
Shunt Reactor
Fig.6 The relative disposition scheme ofUHV SCs and UHV line SRs
In Fig.6, the scheme (a) is called the 'shunt reactor at SC
bus side scheme' and the scheme (b) is called the 'shunt
reactor at SC line side scheme'.
It is well known, the inductive reactive power flow through
capacitors results in the voltage increase along the capacitors,
which is illustrated in Fig.7. The voltage across the terminals of capacitors is xci, where, Xc is the capacitor impedance
and i is the inductive current through capacitors (151.
Capacitor
;-1�2-L Xc·1
Fig.7 The scheme of inductive reactive power flow through capacitors resulting in the voltage increase along the capacitors
Thereby, the 'shunt reactor at SC line side scheme' is
incident to make the voltage of the point after capacitor U2 more higher, because the inductive reactive power needed by
the line shunt reactor have to flow through the capacitor in the
scheme. That is to say, the 'shunt reactor at SC line side
scheme' is not an appropriate way to suppress the steady
overvoltage of the transmission line with capacitors, but the
'shunt reactor at SC bus side scheme' is the right way.
It is also easy to find out that the distributed layout scheme
of SCs is better than the centralized layout scheme to suppress
the steady overvoltage, because the former means the smaller
capacitor impedance Xc.
According to the different disposition schemes of SCs, the
circuits of SCs and SRs shown in Fig.6 (a) and Fig.6 (b) can
be cascade connected to the left/right side of the IT type
equivalent model of the transmission line to form the new
equivalent network shown in Fig.8.
Zeqa Zeqb
Yeqal Yeqar
(a) (b)
Fig.8 The equivalent network for different disposition schemes of SCs
The transmission parameter matrix T for transmission line is
set as:
T= [� �] (12)
Then, the transmission parameter matrices Ta, Tb for the new
equivalent networks can be expressed as:
T = [
1 a YR
[ A+XeC B+XeD] - YKA+C+YRXKC �IB+D+YRXeD
Ta = [I
+�:
Xe �e
I; �]
= [A +Y/lXeA +XeC B+�IXeB+XeD]
YRA +C YRB+ D
(13)
(14)
where, YR is the admittance of line shunt reactor, Xc is the
impedance of series capacitor.
In terms of Eq. (7) and Eq. (13), the new n type equivalent
parameters for scheme (a) are:
Zeqa = B+XeD
Y = YRB+D+YRXeD-1 eqal B+XeD
Y = A+XeC-1 eqar B + XeD
(15)
(16)
(17)
In terms of Eqs. (7) and (13), the new n type equivalent
parameters for scheme (b) are:
Zeqb = B+XeD+ YRXeB
Y = �IB+D-l eqbl B+XeD+YRXeB
Y = A+YRXeA+XeC-l eqbr B + X D + Y X B e R e
(18)
(19)
(20)
It can be seen from Eqs.(15)-(20) that Zeqb is less than Zeqa, Yeqbl+ Yeqbr is greater than Yeqal+ Yeqar. which means that the
reactive power demand of scheme (b) is smaller. Thereby the
terminal voltage of the equivalent network (b) is likely higher,
which makes the voltage of the point after capacitor in scheme
(b) higher.
Therefore, it can be concluded that the 'shunt reactor at SC
bus side' scheme and the centralized layout scheme of UHV
SCs are incident to suppress the fundamental frequency steady
overvoltage, compared with the 'shunt reactor at SC line side'
scheme and the distributed layout scheme of UHV SCs.
V. CASE STUDY
A. Wandian Dongsong HUV Transmission Project
The bulk power is delivered form Anhui province to
Shanghai and Zhejiang province via the Wand ian Dongsong
UHV transmission project shown in Fig.9. According to the
corresponding research (17).[18), the transmission active power
of 1000kV Huainan-Wannan double circuit line with SCs is
10000MW in 2012 planned grid. Under the operation mode, 8
sets and 16 sets of 21 OMvar low-voltage capacitors are put
into operation at Huainan 1000kV substation and Zhebei
1000kV substation respectively. PSD-BPA simulation tool is
applied to make further study from the perspective of power
system power flow and transient stability.
<aJ
(bJ
336km
<cJ
Fig.9 The scheme of Wand ian Dongsong UHV transmission line with SC
Three layout schemes for SCs and SRs which are illustrated
in Fig.9 are considered in the study: a. 40% SCs are installed
at Huainan side centrally, while SRs are installed at bus side; b.
40% SCs are installed at Huainan side cantrally, while SRs are
installed at line side; c. 20% SCs are installed at each side of
the line dispersedly, while SRs are installed at bus side. Table
I and Table II list the steady-state operation voltage of
Huainan-Wannan line under normal operation mode,
according to power flow calculation after the n type
equivalent parameters of transmission line with SCs are
obtained with the proposed method. TABLE. I
THE STEADY-STATE OPERATION VOLTAGE OF WAN DIAN DONGSONG UHV TRANSMISSION LINE WITH SC FOR LA YOUT SCHEME A) AND B)
Huainan Zhebei Layout
bus SC line Wannan bus
bus scheme side voltage voltage
voltage a \033.7 1054.3 978.0 b \037.1 1080.0 997.7
Where the unit of voltage is kV
TABLE. II
voltage 1014.4 1027.8
Huxi bus voltage
1033.4 1053.9
THE STEADY-STATE OPERATION VOLTAGE OF W AN DIAN DONGSONG UHV TRANSMISSION LINE WITH SC FOR LAYOUT SCHEME C1
Huainan Huainan Wannan Wannan Zhebei Huxi Layout bus
SC line SC line bus bus bus
scheme voltage side side voltage voltage voltage
voltage voltage c 1030.2 1039.7 983.9 990.3 1019.5 \035.4
Where the unit of voltage is kV
For the above three schemes, when N-I contingency
happens to Huainan-Wannan line, the power system cannot
supply sufficient reactive power compensation due to heavy
power flow and enormous reactive power loss, so it is very
difficult to obtain the convergent power flow calculation result
after line N-I contingency. Adopting transient stability
calculation, the voltages at both bus sides and the load
condition of end of Huainan-Wannan line after N-I
contingency are obtained. Then, the voltage distribution along
the line for three schemes is obtained by the proposed
algorithm and is shown in Fig.10-12. The results reveal that
for scheme I and 2, the voltage of SC line side exceeds the
maximum system operation voltage [21]-[22] (lIOOkV) after N-I
contingency. Thereinto, the maximum voltage along the line is
l105kV for scheme a (shown in Fig. 10), and that is 1130kV
for scheme b (shown in Fig. II). While for scheme c, the
maximum voltage of along the line is 1054kV after line N-I
contingency, which is less than llOOkV (shown in Fig. 12).
Fig.IO The voltage distribution along the Huainan-Wannan line after line N-I contingency for scheme a
� t�"'j· .. ........ +. ; ...................... ,� ........... ...... , .......... " ; .......... .
Fig.11 The voltage distribution along the Huainan-Wannan line after line N-I contingency for scheme b
., .
_.r.-w_ .....
Fig.12 The voltage distribution along the Huainan-Wannan line after line N-I contingency for scheme c
It is evident that in heavy load mode, when SCs are
installed at one side centrally, the voltage of SC line side after
line N-I contingency will exceed 1100kV, whatever the SRs
are installed at SC bus side or at SC line side. Contrariwise, if
SCs are installed at both line sides dispersedly and SRs are
installed at SC bus side, the voltage of SC line side after line
N-I contingency will not exceed llOOkV. Therefore, it is
recommended that the SCs should be arranged in Huainan
Wannan line dispersedly, and the SRs should beinstalled at SC
bus side. This is also identical with the EMTPE simulation
result.
B. Ximeng Waisong HUV Transmission Project
The bulk power is delivered form Inner Mongolia to
Beijing, Tianjin, Shandong province and East China via the
Ximeng Waisong UHV transmission project shown in Fig.12.
According to the corresponding research, the transmission
active power of 1000kV Ximeng-Beijingdong double circuit
line with SCs is 9000MW in 2012 planned grid. Under the
operation mode, 3 sets and 8 sets of 210Mvar low-voltage
capacitors are put into operation at Ximeng 1000kV substation
and Beijingdong 1000kV substation respectively. PSD-BPA
simulation tool is applied to make further study from the
perspective of power system power flow and transient stability.
The Ximeng-Beijingdong transmission line consists of 7
sections whose parameters per unit length/phase are not
identical.
(0)
(b) Fig.8 The scheme ofXimeng Waisong UHV transmission line with SC
Two layout schemes for SCs and SRs which are illustrated
in Fig.8 are considered in the study: a. 40% SCs are installed
at Ximeng side centrally, while SRs are installed at bus side; b.
40% SCs are installed at the location which is 68km distant
from Ximeng substation cantrally, while SRs are installed at
bus side. Table III and Table IV list the steady-state operation
voltage of Ximeng-Beijingdong line under normal operation
mode and N-I contingency mode, according to power flow
calculation after the IT type equivalent parameters of
transmission line with SCs are obtained with the proposed
method. TABLE. III
THE STEADY-STATE OPERATION VOLTAGE OF XIMENG WAISONG UHV TRANSMISSION LINE WITH SC FOR LA YOUT SCHEME A)
Layout Operation Ximeng SC line Beijingdong Jinan bus side bus scheme mode
voltage voltage bus voltage
voltage a normal \071.0 1067.8 1034.3 1060.3 a N-I 1002.0 1126.2 954.7 1032.7
Where the unit of voltage is k V
TABLE. IV THE STEADY-STATE OPERATION VOLTAGE OF XIMENG WAISONG UHV
TRANSMISSION LINE WITH SC FOR LAYOUT SCHEME B}
Ximeng SC SC Jinan
Layout mode bus left right Beijingdong bus scheme voltage side side bus voltage
voltage voltage voltage
b normal 1064.0 1068.4 1066.8 1037.7 1061.5 b N- \ 1003.6 974.7 1060.2 963.2 1035.7
Where the unit of voltage is kV
The voltage distribution along the line for the two schemes
is obtained using the proposed algorithm and is shown in Fig.13-14. The results reveal that for scheme a, the voltage of
SC line side exceeds the maximum system operation voltage
(llOOkV) after N-I contingency, which is shown in Fig. 13.
While for scheme b, the maximum voltage of along the line is
1060.2 kV after line N-l contingency, which is less than
llOOkV (shown in Fig. 14).
--_.--.-........
Fig. 13 The voltage distribution along the Huainan-Wannan line after line N-I contingency for scheme 3
"-
Fig.14 The voltage distribution along the Huainan-Wannan line after line N- \ contingency for scheme 3
It is evident that in heavy load mode, for scheme a, the
voltage of SC line side after line N-I contingency will exceed
1100kV. Contrariwise, for scheme b, the voltage of SC right
side after line N-I contingency will not exceed 1100kV.
Therefore, it is recommended that the SCs should be installed
at the location which is 68km distant from Ximeng side, and
the SRs should be installed at bus side. This is also identical
with the EMTPE simulation result.
VI. CONCLUSION
In this paper, the transmission-line theory based fast
algorithm for voltage distribution along the line of the UHV
transmission lines with SCs is proposed. In the algorithm, the
voltage distribution along the line is obtained accurately;
moreover, the reactive power supply capacities of both sides of
the UHV lines with SCs can be taken into account, which
implies that the engineering applicability of the proposed
algorithm is very strong. At last, the relative disposition
scheme of UHV SCs and UHV line SRs as well as the
centralized/distribution layout scheme of UHV SCs are
investigated, and some useful conclusions are drawn. The
simulation of 'Wandian Dongsong' HUV transmission project
demonstrates the effectiveness of the proposed algorithm.
VII. REFERENCES
Periodicals: [I) Wang Weizhou, Peng Xilan, Heshien, "Operation and Maintenance of
the First Home-Made 220kV TCSC Equipment for Transmission line from Cheng County to Bikou in Gansu Province", Power System Technology, 2007, vol.3l, no.l, pp.51-55, Jan. 2007.
[2) Lin Jiming, Peng Baoshu, Guo Qiang, Gong Tiansen, Yin Yonghua. "Tian-Ping TCSC in China Southern Grid", International Electric Power for Chin, 2004, vol 8, no.5, pp. 48-51, Oct. 2004.
[3) Li Ye, Jing Wei, "Operation analysis on Extra-high Voltage Transmission Lines Series Capacitors", Power Capacitor, 2006, vol.4. pp.8-12.
[4) Lei Xianzhang, D.Povh, "Series Compensation For a Long Distance AC Transmission System", Power System Technology, voI.22, no. I I, pp.34-38, 41, Nov. 1998,
[5) Zhong Sheng, "Problems Caused By Adding Series Compensation Devices to The Transmission System and Their Solution", Power System Technology, voI.28, no.6, pp.26-30, Mar. 2004,
[6) Shu Yinbiao, "Research and Application for 1000kV AC UHV Power Transmission Technology", Power System Technology, voI.29, no.19, pp.I-6, Oct. 2005.
[7) Lin Jiming, Chen Zhenzhen, "Research and Development on Electric Electronic and FACTS Devices Digital Simulation Software Package", Electric Power, vol.37, no.l, pp.29-33, Jan.2004.
[8) Cao Xianglin, "Application of EMTP in the Research of UHV AC Power Transmission, High Voltage Engineering", vol.32, no.7, pp.32-36, July.2006.
[9) Chen Gesong, Lin Jiming, Guo Jianbo, Yu Youwen, Tu Shaoliang, Wang Shaode, Li Jun. "Overvoltage Protection for 500kV Series Compensation Station", Power System Technology, voI.25, no.2, pp.21-24, Feb.200I.
[10) Li Taijun, "Proper Choice for Layout Place of Series Compensation Device", Electric Power, voI.42, no.IO, pp.42-47, Oct.2009.
Books: [II) G P.M. Anderson, R.G. Farmer, "Series Compensation of Power
Systems", PBLSH Inc, USA, 1996. [I2) Power System Controllable Series Capacitor Compensation, Zhou
Xiaoxin, Guo Jianbo, Lin Jiming, Wu Shouyuan,Beijing, China, 2009, pp.221-230.
[13) Liu Zhenya, Ultra High Voltage Grid, Beijing, China, 2005. [14) Dommel H W., "EMTP Theory Book", Canada, 1986. [15) He Yangzan, Wen Zengyin, Power System Analysis, Wuhan, China,
pp.27, 2005.
Technical Reports: [16) Zheng Bin, Han Bin, "Study on Basic Design, Main Equipment
Specification, Overvoltage Protection Control and Electromagnetic Issues of Dehong-Boshang-Mojiang 500kV Series Compensation Project", China Electric Power Research Institute, Beijing, China, Apr.2009
[17) Lin Jiming, Ban Liangeng, Wang Xiaotong, Han Bin, "Overvoltage Insulation Cooperation Research on 1000kV UHV AC Double Circuit Transmission Lines", China Electric Power Research Institute, Beijing, China, Aug.2008
[18) Zheng Bin, Ban Liangeng, Xiang Zutao, Qin Xiaohui, "Electromagnetic Analysis on Huainan-Wannan UHV Double Circuit Series Capacitor Compensation Lines", China Electric Power Research Institute, Beijing, China, Mar.2010
Papers from Conference Proceedings (Published.): [19) Q.Bui-van, F.Gallon, "Long-Distance AC Power Transmission and
Shunt Series Compensation Overview and Experiences. ClGRE 2006, Paris.
[20) Roberto Campos, Per Lindberg, "Operational Experience of 800 kV Series Capacitors", Inaugural IEEE PES 2005 Conference and Exposition in Africa, Durban, South Africa, 11-15th, July.2005.
[21) Lin Jiming, Ban Liangeng, Wang Xiaogang, "Discussion About Electromagnetic Issues of China UHV System", UHV AC International Symposium. Beijing, China, 2005.
Standards: [22) Standard Guide Technique File of China, GB/Z 24842-2009,
"OvervoItage and Insulation Coordination of 1000kV UHV AC Transmission Project", Nov.2009
VIII. BIOGRAPHIES
Qin Xiaohui was born in Shanxi, China, in 1979. He received the Ph.D degree in power system and its automation from North China Electricity Power University, Beijing, China, in 2008. Currently, he is with Power Grid Planning Division, Power System Department, China Electric Power Research Institute. The key research area includes power system plan and operation, power system transient stability, W AMS and its application.
Shen Hong was born in Heilongjiang, China, in 197 I. He received the Ph.D degree in power system and its automation from China Electric Power Research Institute (CEPRI) in 2003. Currently ,he is director of Power Grid Planning Division in CEPRI, his research interests include power system analysis, power system planning, renewables integration etc.
Zhou Qinyong was born in Jiangsu Province, China, in 1977. He received the M.E. degree in power system and its automation from China Electric Power Resaerch Institute, Beijing, China, in 2003, Currently ,he is vice director of Power Grid Planning Division in CEPRI,The key research area includes power system plan and new technology application.
Guo Qiang was born in Shaanxi Province, China, in 1972. He received the Ph.D degree in power system and its automation from Xi'an Jiaotong Universuty in 1998. Currently, he is vice director of Power System Department in CEPR!. His research interests include power system analysis, power system planning and new technology application.
Zheng Bin was born in Hebei, China, in 1982. He received the M.E. degree in high voltage and insulation technology from North China Electricity Power University, Beijing, China, in 2006. Currently, he is with China Electric Power Research Institute as an engineer. The key research area is electromagnetic transient simulation for power system.
Xiang Zutao was born in China in 1976. He received bachelor and doctor degree from Tsinghua University in 1999 and 2005. He joined China Electric Power Research Institute as a member of the power system department in 2005 and worked in the field of electro-magnetic transients and overvoltage protection of power system
Ban Liangeng was born in China in 1960. He received master degree from China Electric Power Research Institute in 1997. He is now professor in China Electric Power Research Institute and his area of interests is electro-magnetic transient analysis in power system.