Research on Power Flow Control of UPFC Based on PSASP/UPI

Abstract:

The main objective of power flow control for unified power flow controller (UPFC) is to increase the transmission capacity over the existing transmission corridor or line. This paper presents a practical engineering methodology of embedding the power flow control model of UPFC into the commercial software -- power system analysis software package (PSASP) based on its user program interface (UPI) function. In the proposed methodology, the interface currents of UPFC series side and UPFC shunt side between the UPFC device and the network are used to control the transmission line power flow and UPFC bus voltage, respectively. In UPFC series side, the current of UPFC series branch is calculated from the power target equation of the controlled line. In UPFC shunt side, the shunt reactive current of UPFC is used to control the bus voltage. Simulation results on a practical power system show that the proposed methodology can be efficiently applied to the engineering research and analysis of the real power grid with UPFC with good convergence and only one control parameter needed to be prescribed.

• Periodical: Applied Mechanics and Materials (Volumes 385-386)
• Pages: 1078-1081
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.385-386.1078
• Online since: August 2013
• Authors: Fang Zhang, Jian Ping Chen, Chuan Dong Li, Yan Juan Wu
• Keywords: Interface Current, Power Flow Control, PSASP, UPFC, UPI

References

[1] L. Gyugyi, C. D. Schauder, S. L. Williams, The unified power flow controller: a new approach to power transmission control, IEEE Trans. on Power Delivery, 1995, 10(2): 1085–1097.

DOI: 10.1109/61.400878

[2] L.M. Liu, P.C. Zhu, Y. Kang, Power-flow control performance analysis of a unified power-flow controller in a novel control scheme, IEEE Trans. on Power Delivery, 2007, 22(3): 1613-1619.

DOI: 10.1109/tpwrd.2006.886799

[3] A. Ajam, A.M. Shotorbani, M.P. Aagababa, Application of the direct Lyapunov method for robust finite-time power flow control with a unified power flow controller, IET Generation, Transmission & Distribution, 2012, 6( 9): 822–830.

DOI: 10.1049/iet-gtd.2011.0865

[4] A. Zangeneh, A. Kazemi, M. Hajatipour, A Lyapunov theory based UPFC controller for power flow control, Electrical Power and Energy Systems, 2009, 31: 302–308.

DOI: 10.1016/j.ijepes.2009.03.005

[5] C.T. Chang and Y.Y. Hsu, Design of UPFC controllers and supplementary damping controller for power transmission control and stability enhancement of a longitudinal power, IET Generation, Transmission & Distribution, 2002, 149(4): 463-471.

DOI: 10.1049/ip-gtd:20020199

[6] J. Guo, M. L. Crow, J. Sarangapani, An improved UPFC control for oscillation damping, IEEE Trans. on Power System, 2009, 24(1): 288-296.

DOI: 10.1109/tpwrs.2008.2008676

[7] G.K. Venayagamoorthy, R.P. Kalyani, Two separate continually online-trained neurocontrollers for a unified power flow controller, IEEE Trans. on Industry Applications, 2005, 41(4): 906-916.

DOI: 10.1109/tia.2005.851571

[8] P. K. Dash, S. Mishra, and G. Panda, A radial basis function neural network controller for UPFC, IEEE Trans. Power Syst., 2000, 15(4): 1293-1299.

DOI: 10.1109/59.898104

[9] H.F. Wang, M. Jazaeri and Y.J. Cao, Operating modes and control interaction analysis of unified power flow controllers, IET Generation, Transmission & Distribution, 2005, 152(2): 264-270.

DOI: 10.1049/ip-gtd:20041220

[10] Z. Y Huang, Y. X Ni, C. M Shen, Application of unified power flow controller in interconnected power systems—modeling, interface, control strategy, and case study, IEEE Trans. on Power System, 2000, 15(2): 817-824.

DOI: 10.1109/59.867179

[11] China Electric Power Research Institute User Manual of Power System Analysis Software Package (Version 6. 2) Beijing(2005) (in Chinese).