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PSO based Optimal Power Flow with Hybrid Distributed Generators and UPFC

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Author(s): Lakshmi Ravi | S.G. Bharathi dasan

Journal: TELKOMNIKA
ISSN 1693-6930

Volume: 10;
Issue: 3;
Date: 2012;
Original page

ABSTRACT
Distributed Generation (DG) is a small source of electric power conversion from nonconventionalenergy sources and Hybrid DGs is often the most cost-effective and reliable way toproduce power. Optimal Power flow (OPF) study is conducted on a power system to achieve one of the following objectives: cost/loss minimization or Available transfer capability (ATC)calculation in a deregulated environment. The optimality of control variables would definitely change with respect to the location, quantity and combination of power injection by DGs. On the other hand, FACTS controllers are effective in utilizing the existing transmission network whichis very important especially in a deregulated system. Unified Power flow controller (UPFC), a second generation FACTS controller, is well known for minimizing the cost of generation/losses with a good voltage profile as well as for ATC improvement. This paper conducts a detailed OPF study on a 9 bus system [7] for the above mentioned three objectives, with DGs and UPFC. To solve the OPF problem, Particle Swarm Optimization (PSO), a non conventional technique is used.
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