Interaction Analysis of Multi-Function FACTS and D-FACTS Controllers by MRGA

With the growing application of flexible AC transmission systems (FACTS) and distributed FACTS (D-FACTS), the coordinating problem of FACTS and D-FACTS controllers in joint operation must be considered in modern power systems. The main purpose of this paper is to investigate the possible interaction that may occur between the distributed static series compensator (DSSC) and the static synchronous compensator (STATCOM) when they operate concurrently in the power system. The modified relative gain array (MRGA) is implemented to analyze the interactions. The application of MRGA for the effective design of multiobjective controllers of the STATCOM and DSSC is demonstrated by 2 cases of study: the first case includes the contradiction among the AC voltage control, DC link capacitor voltage control, and power oscillation damping controller of the STATCOM, and the second case is dedicated to the interaction between the different controllers of the DSSC and the STATCOM. The simulation results are carried out in PSCAD/EMTDC in order to verify the results obtained from MRGA analysis in both cases of study.

Interaction Analysis of Multi-Function FACTS and D-FACTS Controllers by MRGA

With the growing application of flexible AC transmission systems (FACTS) and distributed FACTS (D-FACTS), the coordinating problem of FACTS and D-FACTS controllers in joint operation must be considered in modern power systems. The main purpose of this paper is to investigate the possible interaction that may occur between the distributed static series compensator (DSSC) and the static synchronous compensator (STATCOM) when they operate concurrently in the power system. The modified relative gain array (MRGA) is implemented to analyze the interactions. The application of MRGA for the effective design of multiobjective controllers of the STATCOM and DSSC is demonstrated by 2 cases of study: the first case includes the contradiction among the AC voltage control, DC link capacitor voltage control, and power oscillation damping controller of the STATCOM, and the second case is dedicated to the interaction between the different controllers of the DSSC and the STATCOM. The simulation results are carried out in PSCAD/EMTDC in order to verify the results obtained from MRGA analysis in both cases of study.

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  • F.D. de Jesus, E.H. Watanabe, L.F.W. de Souza, J.E.R. Alves, “SSR and power oscillation damping using gate- controlled series capacitors (GCSC)”, IEEE Transactions on Power Delivery, Vol. 22, pp. 1806–1812, 2007.
  • N.G. Hingorani, L. Gyugyi, Understanding FACTS: Concepts and Technology of Flexible AC Transmission System, New York, IEEE Press, 2000.
  • D. Divan, W. Brumsickle, R. Schneider, B. Kranz, R. Gascoigne, D. Bradshaw, M. Ingram, I. Grant, “A distributed static series compensator system for realizing active power flow control on existing power lines”, IEEE Transactions on Power Delivery, Vol. 22, pp. 642–649, 2006.
  • D. Divan, “Improving power line utilization and performance with D-FACTS devices”, IEEE Power Engineering Society General Meeting, Vol. 3, pp. 2419–2422, 2005.
  • H. Johal, D. Divan, “Design considerations for series-connected distributed FACTS converters”, IEEE Transactions on Industry Applications, Vol. 43, pp. 1609–1618, 2007.
  • P. Fajri, D. Nazarpour, S. Afsharnia, “A PSCAD/EMTDC Model for distributed static series compensator (DSSC)”, International Conference on Electrical Engineering, pp. 1–6, 2008.
  • M. Khalilian, M. Mokhtari, D. Nazarpour, B. Tousi, “Transient stability enhancement by DSSC with a fuzzy supplementary controller”, Journal of Electrical Engineering & Technology, Vol. 5, pp. 415–422, 2010.
  • M. Mokhtari, M. Khalilian, D. Nazarpour, “Damping of low frequency oscillations in power system with distributed static series compensator (DSSC)”, International Review on Modeling and Simulation, Vol. 2, pp. 507–512, 2009.
  • M. Khalilian, M. Mokhtari, S. Golshannavaz, D. Nazarpour, “Distributed static series compensator (DSSC) for sub-synchronous resonance alleviation and power oscillation damping”, European Transactions on Electrical Power, Vol. 22, pp. 589–600, 2011.
  • R.M. Mathur, R.K. Varma, Thyristor-Based FACTS Controllers for Electrical Transmission Systems, New York, IEEE Press and Wiley Interscience, 2002.
  • H.F. Wang, “Interactions and co-ordination of multiple-function FACTS controllers”, European Transactions on Electrical Power, Vol. 11, pp. 1–15, 2001.
  • L. Zhang, P.X. Zhang, H.F. Wang, Z. Chen, W. Du, Y.J. Cao, S.J. Chen, “Interaction assessment of FACTS control by RGA for the effective design of FACTS damping controllers”, IET Generation, Transmission & Distribution, Vol. 153, pp. 610–615, 2006.
  • H.F. Wang, M. Jazaeri, Y.J. Cao, “Analysis of control conflict between UPFC multiple control functions and their interaction indicator”, International Journal of Control Automation and Systems, Vol. 3, pp. 315–321, 2005.
  • S. Ammari, Y. Besanger, N. Hadjsaid, D. Georges, “Robust solutions for the interaction phenomena between dynamic loads and FACTS controllers”, IEEE Power Engineering Society Summer Meeting, Vol. 1, pp. 401–406, 2000.
  • L. Xianzhang, N. Edwin, Lerch, D. Povh, “Optimization and coordination of damping controls for improving system dynamic performance”, IEEE Transactions on Power Systems, Vol. 16, pp. 473–480, 2001.
  • L. Jun, T. Guangfu, L. Xingyuan, “Interaction analysis and coordination control between SSSC and SVC”, International Conference on Power System Technology, pp. 1–9, 2006.
  • T. Nguyen, R. Gianto, “Optimal design for control coordination of power system stabilizers and flexible alter- nating current transmission system devices with controller saturation limits”, IET Generation, Transmission & Distribution, Vol. 4, pp. 1028–1043, 2010.
  • D. Divan, “Distributed intelligent power networks - a new concept for improving T&D system utilization and performance”, IEEE Transmission and Distribution Conference, pp. 1–6, 2004.
  • D.J. Marihart, “Communications technology guidelines for EMS/SCADA systems”, IEEE Transactions on Power Delivery, Vol. 16, pp. 181–188, 2001.
  • M. Rauls, “Analysis and design of high frequency co-axial winding transformers”, MSc, University of Wisconsin - Madison, USA, 1992.
  • P. Kundur, Power System Stability and Control, New York, McGraw-Hill, 1994.