Re-defining the reactive power dispatch problem in the context of competitive electricity markets

This study proposes a novel reactive power dispatch model that takes into account both the technical and economical aspects associated with reactive power dispatch in the context of the new operating paradigms in competitive electricity markets. The main objective of the proposed model is to minimise the total amount of dollars paid by the system operator to the generators for providing the required reactive power support. The real power generation is decoupled and assumed fixed during the reactive power dispatch procedures; however, because of the effect of reactive power on real power, a re-schedule in the real power generation is allowed within given limits. The 32-bus CIGRE benchmark system is used to illustrate the proposed reactive power dispatch technique. The developed model is generic in nature and designed to be adopted by system operators in any electricity market structure, as demonstrated by its application to Ontario's grid considering its market rules for reactive power payments.

[1]  A. Bose,et al.  Localized reactive power markets using the concept of voltage control areas , 2004, IEEE Transactions on Power Systems.

[2]  C. Cañizares,et al.  An Optimal Reactive Power Dispatch Model for Deregulated Electricity Markets , 2007, 2007 IEEE Power Engineering Society General Meeting.

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

[4]  Venkataramana Ajjarapu,et al.  An optimal reactive power planning strategy against voltage collapse , 1994 .

[5]  I. Grossmann.  Review of Nonlinear Mixed-Integer and Disjunctive Programming Techniques , 2002 .

[6]  Shangyou Hao,et al.  A reactive power management proposal for transmission operators , 2003 .

[7]  Christodoulos A. Floudas,et al.  Global Solution Approach for a Nonconvex MINLP Problem in Product Portfolio Optimization , 2005, J. Glob. Optim..

[8]  O. Alsac,et al.  Optimal Load Flow with Steady-State Security , 1974 .

[9]  K. C. Mamandur,et al.  Optimal Control of Reactive Power flow for Improvements in Voltage Profiles and for Real Power Loss Minimization , 1981, IEEE Transactions on Power Apparatus and Systems.

[10]  J. W. Lamont,et al.  Cost analysis of reactive power support , 1999 .

[11]  A. El-Keib,et al.  Calculating short-run marginal costs of active and reactive power production , 1997 .

[12]  C.A. Canizares,et al.  Power system security in market clearing and dispatch mechanisms , 2006, 2006 IEEE Power Engineering Society General Meeting.

[13]  Kankar Bhattacharya,et al.  Locational balance service auction market for transmission congestion management , 2006 .

[14]  Heather Fry,et al.  A user’s guide , 2003 .

[15]  Juan M. Zamora,et al.  A global MINLP optimization algorithm for the synthesis of heat exchanger networks with no stream splits , 1998 .

[16]  C. Cañizares,et al.  A Unified Framework for Reactive Power Management in Deregulated Electricity Markets , 2006, 2006 IEEE PES Power Systems Conference and Exposition.

[17]  Richard E. Rosenthal,et al.  GAMS -- A User's Guide , 2004 .

[18]  Jiuping Pan,et al.  A Procurement Market Model for Reactive Power Services Considering System Security , 2008, IEEE Transactions on Power Systems.

[19]  S. M. Shahidehpour,et al.  Linear reactive power optimization in a large power network using the decomposition approach , 1990 .

[20]  Alberto Berizzi,et al.  System-area operating margin assessment and security enhancement against voltage collapse , 1996 .

[21]  C. T. Su,et al.  Fuzzy-Based Voltage/Reactive Power Scheduling for Voltage Security Improvement and Loss Reduction , 2001, IEEE Power Engineering Review.

[22]  Jiuping Pan,et al.  Marginal loss calculation in competitive electrical energy markets , 2004, 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings.

[23]  N. Grudinin.  Reactive power optimization using successive quadratic programming method , 1998 .

[24]  Marcos J. Rider,et al.  Reactive power pricing in deregulated electrical markets using a methodology based on the theory of marginal costs , 2001, LESCOPE 01. 2001 Large Engineering Systems Conference on Power Engineering. Conference Proceedings. Theme: Powering Beyond 2001 (Cat. No.01ex490).

[25]  S. M. Shahidehpour,et al.  A New Approach for Minimizing Power Losses and Improving Voltage Profile , 1987, IEEE Transactions on Power Systems.

[26]  K. Bhattacharya,et al.  Towards a Competitive Market for Reactive Power , 2002, IEEE Power Engineering Review.

[27]  Shangyou Hao,et al.  Reactive power pricing and management , 1997 .

[28]  V. F. Carvalho,et al.  Assessment of Real-Time Optimal Voltage Control , 1986, IEEE Transactions on Power Systems.

[29]  Felix F. Wu,et al.  Large-Scale Optimal Power Flow: Effects of Initialization, Decoupling & Discretization , 1989, IEEE Power Engineering Review.