This study based on investigation for integration wind power into conventional power system with its impact on fossil fuel generators and their generation management. Wind power as environmental friendly energy source can reduce the operational cost of the system due to considering no cost for energizing the generator in comparing with fossil fuel generators. However due to unpredictable nature of the wind power, it is quite difficult to determine how much wind power should be integrated to ensure both power system security and operational cost reduction. In this study by compering both economic and security requirements using GA and PSO for smart calculation in wind power generation into the conventional system, a proper economic load dispatch program has been applied. Three different approaches (pessimistic, Optimistic and Linear) has been studied and compered to evaluate the system security and reliability with economic benefits. Due to considering no fuel cost for wind power generators, it is more beneficial to produce electrical power by this type of power resource but with more reliability for the system. At the end by compering PSO and GA results and numerical analysis on IEEE-30 bus test system with six generator, exactitude and accuracy of the proposed approaches presented. پرونده مقاله

In emerging electric power systems, increased transactions often lead to the situations where the system no longer remains in secure operating region. The flexible Ac transmission system (FACTS) controllers can play an important role in the power system security enhancement. However, due to high capital investment, it is necessary to locate these controllers optimally in the power system. FACTS devices such as UPFC can regulate the active and reactive power control as well as being adaptive to voltage-magnitude control simultaneously because of their flexibility and fast control characteristics. Placement and sizing these devices in suitable location can lead to control in line flow and maintain bus voltages in desired level and so improve voltage stability margins. Moreover, this adjustment can improve voltage profile system along with reducing the power system losses. This paper proposes a systematic method by which optimal location and sizing of Unified Power Flow Controller (UPFC) to be installed using two different evolutionary algorithm. FACTS DEVICES model is incorporated into a Newton-Raphson algorithm to perform load flow analysis. Optimizing its location becomes a concern when coming to the practical implementation stage. Proposed algorithm is tested on IEEE 24 bus power system for optimal allocation as well as sizing of UPFC device and results are presented. پرونده مقاله