Capacitor placement for conservative voltage reduction on distribution feeders

This paper proposes a strategy for placing capacitors at multiple locations on a distribution feeder to allow: 1) deeper levels of substation voltage reduction for peak load reduction; 2) power factor correction; and 3) power loss reduction. By reducing peak demand, a utility can avoid paying high prices when purchasing power or it may sell excess generation at high prices. By minimizing system losses, savings are obtained through reduced demand and energy charges. Besides a positive economic response, load reduction associated with improved power factor at the substation has a beneficial effect on voltage stability by increasing the system stability limit margin.

[1]  D. Brillinger,et al.  Handbook of methods of applied statistics , 1967 .

[2]  Anil Pahwa,et al.  Optimal selection of capacitors for radial distribution systems using a genetic algorithm , 1994 .

[3]  Tapan P. Bagchi,et al.  Multiobjective Scheduling by Genetic Algorithms , 1999 .

[4]  Kalyanmoy Deb,et al.  A Fast Elitist Non-dominated Sorting Genetic Algorithm for Multi-objective Optimisation: NSGA-II , 2000, PPSN.

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

[6]  Eckart Zitzler,et al.  Evolutionary algorithms for multiobjective optimization: methods and applications , 1999 .

[7]  M. E. Baran,et al.  Optimal sizing of capacitors placed on a radial distribution system , 1989 .

[8]  S. Civanlar,et al.  Volt/Var Control on Distribution Systems with Lateral Branches Using Shunt Capacitors and Voltage Regulators Part III: The Numerical Results , 1985, IEEE Transactions on Power Apparatus and Systems.

[9]  Jin-Cheng Wang,et al.  Optimal capacitor placements in distribution systems. II. Solution algorithms and numerical results , 1990 .

[10]  Jin-Cheng Wang,et al.  Optimal capacitor placements in distribution systems. I. A new formulation and the overall problem , 1990 .

[11]  Zbigniew Michalewicz,et al.  A Survey of Constraint Handling Techniques in Evolutionary Computation Methods , 1995 .

[12]  A. Y. Chikhani,et al.  Classification of capacitor allocation techniques , 2000 .

[13]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[14]  Damir Novosel,et al.  Impact of distribution efficiency on generation and voltage stability , 2000, Proceedings of the 33rd Annual Hawaii International Conference on System Sciences.