Transient Modeling and Controlling of a New Topology of UPFC for Transmission System Applications
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Abstract
The theory, transient and steady state models of a new topology of UPFC, the center node unified power flow controller(C-UPFC), are presented in this paper. Also, a control system for this device is presented. The CUPFC consists of three voltage source inverters (VSI) with common DC link capacitor. The proposed model represents the behavior of the controller in the
steady and transient states operating conditions. The presented model and control system of C-UPFC is validated with help of the PSCAD/EMTDC simulation program. In this paper C-UPFC is simulated under different operating conditions. The presented control system enables the CUPFC to independent control of the active and reactive power flows at the both ends of transmission line, regulating the DC link capacitor and AC bus voltage and power oscillation damping. It will be shown that by adding a supplementary control signal to the shunt inverter control system, it is possible to balance line current too.
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References
[2] Narain G. Hingorani, L. Gyugyi, Understanding FACTs: Concept and Technology of Flexible ACTransmission Systems, IEEE Press, New York, 1999.
[3] C.A. Canizares, Z. Faur, "Analysis of SVC and TCSC Controllers in Voltage Collapse," IEEE Transactions on PWRS, Vol.14, No.1, pp. 1-8, Feb. 1999.
[4] Y.Sumi, Y.Harumoto, T.Hasegawa, M.Yano, K.Lkeda, T.Matsuura, "New Static VAR Control Using Force Commutated Inverters," IEEE Transactions on Power Apparatus and System, Vol. 100, No. 9, pp.4216-4226, Sept. 1981.
[5] L. Gyugyi, C.D. Schauder, K.K. Sen, "Static Synchronous Series Compensator: A Solid-State Approach to the Series Compensation of Transmission Lines," IEEE Transactions on Power Delivery, Vol. 12, No. 1, pp. 406-413, 1997.
[6] K.K.Sen, "SSSC- Static Synchronous Series Compensator: Theory, Modeling Control," IEEE Trans. On Power Delivery, Vol. 10, No. 2, pp. 1085- 1097, April 1995.
[7] L. Gyugyi, C.D. Schauder, et al, "The Unified Power Flow Controller: A New Approach to Power Transmission Control," IEEE Transactions on Power Delivery, Vol. 10, No. 2, pp. 1085-1093, April 1995.
[8] H. Fujita, Y. Watanabe, H. Akagi, "Control and Analysis of a Uni¯ed Power Flow Controller," IEEE Transactions on Power Electronics, Vol.14, No.6, pp. 1021-1027, November 1999.
[9] S. Round, Q. Yu, et al, "Performance of a Unified Power Flow Controller Using a d-q Control System," AC and DC Transmission Conference, April 1996.
[10] D.G. Cho, E. Ho. Song, "A Simple UPFC Control Algorithm and Simulation on Stationary Reference Frame," ISIE Conference, Pusan, Korea, pp.1810- 1815, 2001.
[11] B. Ooi, B. Lu, "C-UPFC: A New FACTs Controller for Midpoint Sitting," Conference Record of the International Power Electronics Conference, Tokyo, Japan, pp. 1947-1952, April 2000.
[12] Pranesh Rao, L.M. Crow, Zhiping Yang, "STATCOM Control for Power System Voltage Control Applications," IEEE Trans. On Power Delivery, Vol. 15, No. 4, pp. 1311-1317, October 2000.
[13] A. Ajami, S. H. Hosseini, S. Khanmohammadi, G. B. Gharehpetian, "Modeling and Control of C-UPFC for Power System Transient Studies," Simulation Modelling Practice and Theory, Vol. 14, p.p.564-576, 2006.
[14] S.H.Hosseini, A. Ajami, "Voltage Regulation and Transient Stability Enhancement of a Radial AC Transmission System Using UPFC," IECON04, Pusan, Korea, 2004.
[15] A.Ajami, S.H.Hosseini, "Line Current Balancing Using Uni¯ed Power Flow Controller," TENCON04, Chiang Mai, Thailand, 2004.
[16] Claudia A. Canizares, Edvina Uzunovic, and John Reeve, "Transient Stability and Power Flow Models of the Uni¯ed Power Flow Controller for Various Control Strategies," Technical Report #2004-09, University Waterloo, E & EC, March 2004.
[17] P. K. Steimer, H. E. Gruning, J. Werninger, E. Carroll, S. Klaka, and S. Linder, "IGCT A New Emerging Technology for High Power, Low Cost Inverters," IEEE Indusry Applications Magazine, pp. 12-18, July 1999.
[18] PSCAD/EMTDC V4.1, Power System Simulation Software User Manual, Manitoba HVDC Research Center, CANADA, 2003.