H Keshtkar - Amirkabir University of Technology
A Darvishi
S.h Hosseinian - Amirkabir University of Technology

The unstoppable increase in the capacity of power generation and also the stability problems due to the capacity of transmission lines cause new and different congestion management methods to be appeared in power systems. This paper proposes a congestion management method based onOptimal Power Flow (OPF) in order to analyze the effect of reserve generation in total generation and total cost of a power system. The optimization method which is used in OPF is Differential Evolution algorithm. The proposed method is applied on IEEE 24-bus RTS system and the result including power generation and the cost of the energy and reserve powerproduction are presented and compared before and after congestion management and also with and without the existenceof reserve generation.

Integrated power market, reserve effect,Congestion management, Optimal Power Flow,Differential Evolution algorithm