WSEAS CONFERENCES. WSEAS, Unifying the Science

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August 2007, Sept. 2007, Oct. 2007, Nov. 2007, Dec. 2007,

Issue 10, Volume 2, October 2007
Print ISSN: 1790-5060
E-ISSN: 2224-350X







Title of the Paper:  Optimized Generation Costs Using Modified Particle Swarm Optimization Version


Authors: Adel Ali Abou El-Ela, Ragab Abdel-Aziz El-Sehiemy

Abstract: This paper proposes Modified Sensitivity Factors (MSF) for computing the transmission power flows in terms of power generation outputs at different emergency events. The proposed MSF are capable for obtaining higher quality solutions for different power system problems. A modified particle swarm optimization (MPSO) version is proposed to solve the power dispatch problem. Comparison studies which are based on the optimal generation costs are performed to show the superiority of the proposed MSF compared to the existed sensitivity factors. In the competitive environment, the use of the proposed sensitivity factors leads to fair allocation of user responsibilities in recovery problems such as loss allocation and transmission usage allocation problems.

Keywords: Deregulated power systems, particle swarm optimization technique, production cost minimization, sensitivity analysis.

Title of the Paper: Modified Method of Computing Generator Participation Factors by Electricity Tracing with Consideration of Load Flow Changes


Authors: N.D.Ghawghawe, K.L.Thakre

Abstract: Open access is an essential feature in the deregulated power system. It permits all the generators to transmit power into the system. Depending upon the transmission network parameters, generator responses to the variation in loads differ from each other. To know these responses is important from various aspects such as for determination of nodal prices which will be needed in charging differential tariffs and also in congestion management. By considering the load flow changes due to change in load at a bus, electricity tracing is applied to compute the generator participation factors. A new algorithm of proportional sharing principle is developed. A sensitivity analysis is proposed to determine these changes in power flows due to changed load. This new approach for determination of generators participation could be more appropriate when compared with the other method based on proportional sharing principle of electricity tracing

Keywords: Deregulation, Generator Participation Factors, Electricity Tracing, Proportional Sharing Principle, Sensitivity Analysis

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