Time optimal load shedding for distributed power systems

The formulation and computation of an optimal load shedding time algorithm is presented. This new concept was developed as an enhancement to the application of optimal load shedding for corrective control to support future islanded power systems with anticipated, enhanced communications infrastructure. The methodology combines nonlinear mathematical programming and discretized differential-algebraic power systems equations to estimate the optimal amount of load to be shed as well as the best time to shed it. Several simulated scenarios are studied and results presented.

[1]  P. M. Anderson,et al.  An adaptive method for setting underfrequency load shedding relays , 1992 .

[2]  Jun Motohashi,et al.  Comparison of digital simulation and field test results of islanding detection system for synchronous generators , 1999, IEEE Power Engineering Society. 1999 Winter Meeting (Cat. No.99CH36233).

[3]  A. Bose,et al.  A failure to communicate: next generation communication requirements, technologies, and architecture for the electric power grid , 2005, IEEE Power and Energy Magazine.

[4]  Vijay Vittal,et al.  Solution for the crisis in electric power supply , 2001 .

[5]  L. A. Kojovic,et al.  Integration of distributed generation in a typical USA distribution system , 2001 .

[6]  C. G. Bright.  COROCOF: comparison of rate of change of frequency protection. A solution to the detection of loss of mains , 2001 .

[7]  Kevin Tomsovic,et al.  Load following functions using distributed energy resources , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[8]  Allen J. Wood,et al.  Power Generation, Operation, and Control , 1984 .

[9]  A. Ait-Kheddache,et al.  Optimal load shedding methodologies in power systems , 1988, Conference Proceedings '88., IEEE Southeastcon.

[10]  N.W. Miller,et al.  Distributed generation islanding-implications on power system dynamic performance , 2002, IEEE Power Engineering Society Summer Meeting,.

[11]  David Morrow,et al.  Impact of embedded generation on emergency reserve , 1999 .

[12]  H. L. Willis,et al.  New considerations for distribution network planning and design , 1997 .

[13]  William F. Tinney,et al.  Optimum Load-Shedding Policy for Power Systems , 1968 .

[14]  R. Stephenson.  A and V , 1962, The British journal of ophthalmology.

[15]  D. Rajicic.  2001 International Conference on AC-DC Power Transmission 28-30 November 2001 London, UK , 2001 .

[16]  Linda R. Petzold,et al.  Numerical solution of initial-value problems in differential-algebraic equations , 1996, Classics in applied mathematics.

[17]  H. Ahmad,et al.  A Scheme for Controlled Islanding to Prevent Subsequent Blackout , 2002, IEEE Power Engineering Review.

[18]  J.G. Slootweg,et al.  Impacts of distributed generation on power system transient stability , 2002, IEEE Power Engineering Society Summer Meeting,.

[19]  Ding Xu,et al.  Optimal load shedding strategy in power systems with distributed generation , 2001, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[20]  J. R. McDonald,et al.  Dynamics of distribution networks with distributed generation , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[21]  Maria Dicorato,et al.  A corrective control for angle and voltage stability enhancement on the transient time-scale , 2000 .

[22]  M. Amin,et al.  Toward self-healing energy infrastructure systems , 2001 .

[23]  Michele Trovato,et al.  On-line dynamic preventive control: an algorithm for transient security dispatch , 1998 .

[24]  Adisa A. Jimoh,et al.  Influence of distribution generation on distribution network performance , 1999, 1999 IEEE Africon. 5th Africon Conference in Africa (Cat. No.99CH36342).

[25]  P. Kundur,et al.  Power system stability and control , 1994 .

[26]  Scott D. Sudhoff,et al.  Analysis of Electric Machinery and Drive Systems , 1995 .

[27]  R. E. Brown,et al.  Analyzing the reliability impact of distributed generation , 2001, 2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262).

[28]  J. Sharma,et al.  Optimum Load Shedding Taking into Account of Voltage and Frequency Characteristics of Loads , 1985, IEEE Power Engineering Review.