International Journal of Energy Engineering          
International Journal of Energy Engineering(IJEE)
Frequency: Yearly
Editor-in-Chief: Prof. Sri Bandyopadhyay(Australia)
An Algorithm for Optimal Load Dispatch in a Power System Incorporating Transmission Cost
Full Paper(PDF, 2042KB)
The paper describes an algorithm for assigning transmission cost to generator(s) and load(s) based on sensitivity relation between line power flow and power generation from generating stations and loads. It allows formulation of cost function for generating station containing cost co-efficient representing transmission line power flow assigned to generating stations. As a result, solution of co-ordination equation for determining optimum generation scheduling involves transmission cost pertaining to the generating station. This ensures better co-ordination of transmission cost in optimal generation scheduling and reduction in transmission cost. Further, it allows assigning of transmission cost to the loads that are drawing power through the line.
Keywords:Power System Planning, Optimal Load Dispatch, Sensitivity Factor, Transmission Cost
Author: D. Hazarika1
1.Assam Engineering College, Guwahati-78013, India
  1. KIRCHMAYER L.K.: “Economic operation of power system”, Wiley Eastern Ltd., New Delhi’85.
  2. J Carpentier. ”Contribution L’Etude Des Dispatching Economique.”, Bulletine de la Society Francasie des Electriciens, Series 8, vol-3, 1963.
  3. H M Smith and S Y Tong. “Minimising Power Transmission Losses by Reactive Volt Amperes Control”, IEEE Transaction (PAS) 82, 1963.
  4. J K O A Dopazo et al. “An Optimisation Technique for Real and Reactive Power Allocation”, Proceeding IEE 45, 1967.
  5. A H El-abiad and F J Jaimes. “A Method for Optimum Scheduling of Power and Voltage Magnitude.” IEEE (PAS) Transaction, vol-88, pp413- 422, April 1969.
  6. H W Dommel and W F Tinny.”Optimal Power Flow Solutions.”, IEEE Transaction (PAS), vol-87, pp 1866-1876, October 1968.
  7. I Elgerd.”Electric Energy System Theory”, McGraw-Hill, New York, 1971.
  8. C. Wang and S M Shahidehpour “Optimal generation scheduling with ramping cost” IEEE Transaction on power system, vol-10, No. 1 pp 60 - 67, 1995.
  9. Ahmed Farag, Samir Al-baiyat and T C Cheng “Economic load dispatch muliobjective optimization procedure using linear programming techniques” IEEE Transaction on power system, vol-10, No. 2 pp 731 - 738, 1995.
  10. J Nanda, L Hari and M L Kothari “ Economic emission load dispatch with line flow constraints using a classical technique” IEE Proceeding - Gener, Trans, Distrid, Vol 141 No 1 pp 1 - 10, 1994.
  11. T. Hoff and D. S. Shugar “The value of grid-support photovoltaics in reducing distribution system losses”, IEEE Transaction on Energy Conversion, vol-10, pp 569 - 576, 1995.
  12. Ignacio J. Perez-Arriaga, Hugh Rudnick and Walter O. Stadlin “International power system transmission open access experience“, IEEE Transaction on power system, vol-10, No.1 Feb 1995.
  13. H. Sing, S. Hao and A. Papalexopoulos, “Transmission congestion management in competitive electricity market”, IEEE Transaction on power system, vol-13, pp 672 - 680, 1998.
  14. G. Strbac, D. Kirschen and S. Ahmad “Allocating transmission usage on the basis of traceable contributions of generators and loads to flows”,IEEE Transaction on power system, vol-13, pp 527- 533, 1998.
  15. J. W. Marangon Lima and E. J. de Oliveira. “The long term impact of transmission pricing”, IEEE Transaction on power system, vol-13, pp 1514-1520, 1998.
  16. B. Stott and O. Alsac. “Fast decoupled load flow” IEEE Transactions on Power System Vol 93 May/june 1974 pp 859-869.
  17. D. Hazarika and A. K. Sinha. “An algorithm for standing phase angle reduction for power system restoration” IEEE Trans. on Power System Vol. 14 No. 4 pp 1213-1218 1999.