Sensitivity Based Redispatching Method for Congestion Management in a Pool Model

Abbas Fattahi, Sharif University of Technology
Mehdi Ehsan, Sharif University of Technology

Abstract

This paper proposes a new bid based redispatching method to relieve congestion in a pool type market, based on bilateral generation exchanges between generation units. Sensitivity analysis is used to find and implement the cheapest consecutive bilateral exchanges that would remove congestion in an iterative process. Congestion cost is calculated as exchange cost during congestion removal and is divided between congested parts using load flow results in each iteration. Divided cost is recovered from consumers, based on their relative contributions on congested parts using generalized load distribution factors. IEEE 39 and 118 bus test systems are used for case study to evaluate the merits of proposed method and the results are discussed in comparison with other conventional methods.

Submitted: May 19, 2005 · Accepted: November 6, 2005 · Published: November 17, 2005

Recommended Citation

Fattahi, Abbas and Ehsan, Mehdi (2005) "Sensitivity Based Redispatching Method for Congestion Management in a Pool Model," International Journal of Emerging Electric Power Systems: Vol. 3 : Iss. 2, Article 1077.
Available at: http://www.bepress.com/ijeeps/vol3/iss2/art1077

 
 
 
 

ISSN: 1553-779X ©1999-2008 The Berkeley Electronic Press™ All rights reserved.

To submit, subscribe, recommend this journal to your library, or sign up for email alerts, please visit: http://www.bepress.com/ijeeps