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Type: Artigo
Title: Optimisation-based Switch Allocation To Improve Energy Losses And Service Restoration In Radial Electrical Distribution Systems
Author: Lopez
Juan Camilo; Franco
John Fredy; Rider
Marcos J.
Abstract: This study presents a new methodology for the optimal allocation of switching devices in radial electrical distribution systems (EDSs). A specialised greedy randomised adaptive search procedure (GRASP) algorithm defines the location of a number of switching devices in order to simultaneously improve the following optimisation subproblems related to the use of the allocated switches: (i) the optimal reconfiguration of EDS and (ii) the optimal service restoration of EDS. Eventually, the objective function of the proposed switch allocation algorithm minimises the cost of the total expected energy not supplied, computed after deploying the service restoration, plus the cost of the total annual energy loss computed for every load level in a year, plus the investment costs associated with the number of installed switches. Both optimisation subproblems, i.e. the reconfiguration and the restoration of EDS, are represented by mixed-integer non-linear programming (MINLP) models and transformed into mixed-integer linear programming (MILP) models, using linearisation strategies. MILP models guarantee convergence to optimality by using convex optimisation techniques. Finally, all tests were carried out using a real 136-node distribution system, considering dispatchable and non-dispatchable distributed generation resources.
Subject: Power System Restoration
Power Distribution Reliability
Search Problems
Randomised Algorithms
Greedy Algorithms
Power Distribution Economics
Cost Reduction
Integer Programming
Linear Programming
Linearisation Techniques
Convex Programming
Power Generation Dispatch
Distributed Power Generation
Power Generation Economics
Optimisation-based Switch Allocation
Energy Loss Improvement
Radial Electrical Distribution System
Greedy Randomised Adaptive Search Procedure Algorithm
Optimisation Subproblem
Eds Optimal Reconfiguration
Eds Optimal Service Restoration
Cost Minimisation
Switch Allocation Algorithm Objective Function
Investment Cost
Mixed Integer Nonlinear Programming Model
Mixed Integer Linear Programming Model
Milp Model
Linearisation Strategy
Convex Optimisation Tools
136-node Distribution System
Dispatchable Dg Resource
Nondispatchable Dg Resource
Editor: Inst Engineering Technology-IET
Citation: Iet Generation Transmission & Distribution. Inst Engineering Technology-iet, v. 10, p. 2792 - 2801, 2016.
Rights: fechado
Identifier DOI: 10.1049/iet-gtd.2015.1509
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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