NDLI: Short-circuit level control through a multi-objective feeder reconfiguration using fault current limiters in the presence of distributed generations

Content Provider	IET Digital Library
Author	Esmaeili, Abbas Esmaeili, Saeid Hojabri, Hossein
Abstract	Despite the advantages of distributed generations (DGs) in electrical networks, they make some unwanted changes in network short-circuit levels which make new security risks arise. This imposes several new scenarios on the network operation in the presence of DGs. In addition to the mentioned security concerns, reducing network loss is among the objectives constantly sought by system operators. Therefore, this study discusses both the reconfiguration of a distribution network for efficient operation and protection coordination in the form of a multi-objective optimisation problem. The aforementioned objectives include reducing losses and maintaining short-circuit levels under several utilisation scenarios of DGs. Thus, the optimal reconfiguration of the network is simultaneously considered along with the optimal planning of fault current limiters through a two-stage stochastic programming. A fuzzy system is utilised to solve the multi-objective problem and a fuzzy imperialism competitive algorithm is proposed to reach the global optimum. The proposed model is implemented on IEEE 69-bus and a real life 77-bus system. Simulation results confirm that implementing the proposed technique not only reduces power losses, but also maintains a short-circuit level of the network under probable utilisation scenarios which in turn the protection coordination of system is improved.
Starting Page	3458
Ending Page	3469
Page Count	12
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 14, Nov (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.0013
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-11-04
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Combinatorial Mathematics Control of Electric Power System DGs Distributed Generations Distributed Power Generation Distribution Network Electrical Network Fault Current Limiter Optimal Planning Fault Current Limiters Fuzzy Control Fuzzy Imperialism Competitive Algorithm Fuzzy System Global Optimum IEEE-bus System Multiobjective Feeder Reconfiguration Multiobjective Optimisation Problem Multiobjective Problem Network Loss Reduction Network Short-circuit Levels Optimisation Technique Power Generation Control Power Generation Planning Power Loss Reduction Power System Control Power System Planning And Layout Power System Security Protection Apparatus Protection Coordination Security Risks Short-circuit Current Short-circuit Level Control Stochastic Programming Two-stage Stochastic Programming
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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