Reactive power optimisation with voltage stability consideration in power market systems

A method is presented which incorporates the voltage collapse problem, to optimise reactive power support in power market systems. Voltages and reactive power support are inextricably linked and the role of reactive power support is to maintain a proper voltage profile. In an open electricity market reactive power support is an ancillary service for real power transportation. The cost and price analysis of such support needs to be established for the market to function properly. Cost analysis and voltage stability analysis are integrated using an optimal power flow formulation, which is solved using the sequential quadratic programming method. The proposed methodology is tested on the IEEE 14-bus system.

[1]  Fushuan Wen,et al.  Analysis of reactive power pricing under deregulation , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[2]  L. Mogribge.  Market mechanisms for reactive capability and energy , 1996 .

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

[4]  G. J. Berg,et al.  Determination of voltage stability limit in multimachine power systems , 1988 .

[5]  Jong-keun Park,et al.  Optimal real time pricing of real and reactive powers , 1998 .

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

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

[8]  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.

[9]  Bala Venkatesh,et al.  Optimal reactive power planning against voltage collapse using the successive multiobjective fuzzy LP technique , 1999 .

[10]  J. M. Tesseron,et al.  An indicator of the risk of voltage profile instability for real-time control applications , 1990 .

[11]  S. Rama Iyer,et al.  Optimal Reactive Power Allocation for Improved System Performance , 1984, IEEE Power Engineering Review.

[12]  G. Strbac.  Trading electricity and ancillary services in the reformed England and Wales electricity market , 2001, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[13]  M. L. Baughman,et al.  Advanced pricing in electrical systems. II. Implications , 1997 .

[14]  T.V. Cutsem,et al.  A method to compute reactive power margins with respect to v , 1991, IEEE Power Engineering Review.

[15]  P. Kundur,et al.  Towards the development of a systematic approach for voltage stability assessment of large-scale power systems , 1996 .

[16]  Philip E. Gill,et al.  Numerical Linear Algebra and Optimization , 1991 .

[17]  K. C. Almeida,et al.  Optimal power flow solutions under variable load conditions: reactive power cost modeling , 2001, PICA 2001. Innovative Computing for Power - Electric Energy Meets the Market. 22nd IEEE Power Engineering Society. International Conference on Power Industry Computer Applications (Cat. No.01CH37195).