OPTIMAL ALLOCATION OF MULTIPLE DISTRIBUTED GENERATORS IN DISTRIBUTION SYSTEM USING FIREFLY ALGORITHM
SURESH KUMAR SUDABATTULA KOWSALYA M
industrial electrical power systems
Optimal allocation (sizing and siting) of multiple distributed generators (DGs) in the distribution system is an important issue in recent years. This paper, presents an effective technique for determining the optimal location and sizing of DGs for minimizing power losses, operational costs and improving the voltage profile and voltage stability index of radial distribution system(RDS). The entire problem is divided into two sub problems. First location of DGs is finding out by using the integrated approach loss sensitivity factor (LSF) and voltage stability factor (VSF) concepts. Next the sizes of DGs at these locations are determined by using Meta heuristic technique Firefly Algorithm (FA).The objective function is solved with satisfying equality and inequality constraints of the radial distribution system. The proposed method is implemented on IEEE 33 and 69 bus test systems with considering constant power load at different load levels. The obtained results of the proposed method are compared with other popular methods available in the literature for validation purpose.
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