A Novel Scheme for Placement and Sizing of SVCs to Improve Voltage Stability of Wind-Integrated Power Systems

On the grid front, issues concerning voltage instability worsen further as and when large wind farms are integrated at multiple locations in an existing network. Since the wind power is fluctuating in nature, it largely affects the reactive power mismatch and prevents the grid operators from injection of wind power to the grid even though it is available abundantly. Dynamic compensation of reactive power at multiple locations of the network could be an effective means for addressing such problems. This paper presents a novel method for suitable placement and sizing of Static VAR Compensators at desired locations, such that smooth evacuation of wind power can occur under various operating conditions, while maintaining voltage stability, simultaneously. The authors have studied the adverse impacts of wind penetration under various system conditions and implemented the scheme in order to improve voltage sensitivity index. The results obtained from the case studies conducted on the standard IEEE 30-bus and practical Indian 28-bus test systems validate the proposed scheme.

[1]  Venkataramana Ajjarapu,et al.  Bibliography on voltage stability , 1998 .

[2]  Laszlo Gyugyi,et al.  Understanding FACTS: Concepts and Technology of Flexible AC Transmission Systems , 1999 .

[3]  Anca Daniela Hansen,et al.  Wind turbine concept market penetration over 10 years (1995–2004) , 2007 .

[4]  F. S. Young.  Flexible AC transmission systems: technology for the future , 1991, [1991] Proceedings of the 20th Electrical Electronics Insulation Conference.

[5]  K. Bhattacharya,et al.  Reactive Power as an Ancillary Service , 2001, IEEE Power Engineering Review.

[6]  N. Kumar,et al.  Power flow models of static VAR compensator and static synchronous compensator , 2012, 2012 IEEE Fifth Power India Conference.

[7]  M. Schubert,et al.  Static VAR-Compensators , 2007 .

[8]  D. Thukaram,et al.  A new and fast technique for voltage stability analysis of a grid network using system voltage space , 1998 .

[9]  Therese Uzochukwuamaka Okeke,et al.  Flexible AC Transmission Systems (FACTS) , 2013, 2013 International Conference on New Concepts in Smart Cities: Fostering Public and Private Alliances (SmartMILE).

[10]  P. Ashmole,et al.  Flexible AC transmission systems , 1995 .

[11]  H. Glavitsch,et al.  Estimating the Voltage Stability of a Power System , 1986, IEEE Transactions on Power Delivery.

[12]  Abraham Lomi,et al.  Selection of Static VAR Compensator Location and Size for System Voltage Stability Improvement , 2000 .

[13]  Wayne H. Litzenberger,et al.  Bibliography of FACTS applications for grid integration of wind and PV solar power systems: 1995–2010 IEEE working group report , 2011, 2011 IEEE Power and Energy Society General Meeting.

[14]  D.G. Ramey,et al.  Overview of a Special Publication on Transmission System Application Requirements for FACTS Controllers , 2007, 2007 IEEE Power Engineering Society General Meeting.

[15]  T. J. Hammons,et al.  Flexible AC transmission systems (FACTS) , 1997 .

[16]  Jean Perron,et al.  Integration of Wind Energy into Electricity Systems: Technical Challenges and Actual Solutions , 2011 .

[17]  Z. Chen,et al.  Reactive power capability of the wind turbine with Doubly Fed Induction Generator , 2013, IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society.

[18]  Costas D. Vournas,et al.  Power System Voltage Stability , 2015, Encyclopedia of Systems and Control.

[19]  O. Anaya-Lara,et al.  A power system stabilizer for DFIG-based wind generation , 2006, IEEE Transactions on Power Systems.

[20]  Anne Kuefer,et al.  Voltage Stability Of Electric Power Systems , 2016 .