Effects of unbalances and harmonics on optimal capacitor placement in distribution system

Abstract A method comprising of heuristic search technique and simulated annealing (SA) has been proposed for solving the problem of optimal capacitor placement in radial distribution system and the effects of network and load unbalances, supply harmonics and load non-linearities have been studied. The effect of network unbalances is most severe and can be incorporated very easily. But a new formulation of the problem is needed to include the effects of load unbalances, supply harmonics and load non-linearities as these are uncertain in nature.

[1]  S. K. Basu,et al.  Direct solution of distribution systems , 1991 .

[2]  Yahia Baghzouz,et al.  Effects of nonlinear loads on optimal capacitor placement in radial feeders , 1991 .

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

[4]  Tsai-Hsiang Chen,et al.  Integrated models of distribution transformers and their loads for three-phase power flow analyses , 1996 .

[5]  Chao-Shun Chen,et al.  Optimal distribution feeder capacitor placement considering mutual coupling effect of conductors , 1995 .

[6]  Elham B. Makram,et al.  A new technique for optimal size and location of capacitor banks in the presence of harmonics and distortion , 1995 .

[7]  M. Ponnavsikko,et al.  Optimal Choice of Fixed and Switched Shunt Capacitors on Radial Distributors by the Method of Local Variations , 1983, IEEE Transactions on Power Apparatus and Systems.

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

[9]  Yahia Baghzouz,et al.  Shunt capacitor sizing for radial distribution feeders with distorted substation voltages , 1990 .

[10]  J. J. Grainger,et al.  Capacity Release by Shunt Capacitor Placement on Distribution Feeders: A New Voltage-Dependent Model , 1982, IEEE Power Engineering Review.

[11]  M. Kaplan Optimization of Number, Location, Size, Control Type, and Control Setting of Shunt Capacitors on Radial Distribution Feeders , 1984, IEEE Transactions on Power Apparatus and Systems.

[12]  D. Shirmohammadi,et al.  A three-phase power flow method for real-time distribution system analysis , 1995 .

[13]  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.

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

[15]  J. Grainger,et al.  Optimum Size and Location of Shunt Capacitors for Reduction of Losses on Distribution Feeders , 1981, IEEE Transactions on Power Apparatus and Systems.