NDLI: Optimal coordination of Directional Overcurrent Relays using hybrid CSA-FFA method

Content Provider	IEEE Xplore Digital Library
Author	Rajput, V.N. Pandya, K.S. Joshi, K.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. Eng., Charotar Univ. of Sci. & Technol., Changa, India (Rajput, V.N.; Pandya, K.S.) \|\| Center for Urban Sci. & Eng., Indian Inst. of Technol. Bombay, Mumbai, India (Joshi, K.)
Abstract	The optimal coordination of Directional Overcurrent Relays (DOCRs) is a nonlinear and non-convex optimization problem integrating large number of constraints. In this paper, the hybrid Cuckoo Search Algorithm (CSA) - Firefly Algorithm (FFA) approach is implemented to solve coordination problem of DOCRs. The Artificial Intelligence (AI) based method such as FFA searches large solution space with large deviation in results with different number of simulations. Also it is not assured that result given by FFA is global best. To solve this problem, the preliminary optimal value of Time Multiplier Setting (TMS) and pickup current $(I_{p})$ are determined using CSA. The values of these variables are used in FFA as upper bounds which reduce the solution space and give a global optimal solution with very minimum deviation. The obtained results using proposed method are compared with hybrid Genetic Algorithm-Nonlinear Programming (GA-NLP) as well as with conventional CSA and FFA methods. The outcome demonstrates that the proposed method can obtain realizable and global best solution with minimum deviation in results and improved computational efficiency for this complex problem.
Starting Page	1
Ending Page	6
File Size	502943
Page Count	6
File Format	PDF
e-ISBN	9781479979615
DOI	10.1109/ECTICon.2015.7207044
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-24
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Firefly Algorithm Cuckoo Search Algorithm Upper bound Directional Overcurrent Relays power system protection Birds Computational efficiency relay coordination Relays Artificial intelligence Optimization Fault currents
Content Type	Text
Resource Type	Article

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