Improved method for loss minimization in distribution networks

Borozan, V.; Rajicic, D.; Ackovski, R.

doi:10.1109/59.466509

Cited by 66 publications

(41 citation statements)

References 7 publications

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“…The branches are ordered in layers away from the root node [7], as shown in Figure 2. The numbering of the branches in one layer starts only after all of the branches in the previous layer have been numbered.…”

Section: Network Branch Orderingmentioning

confidence: 99%

“…Existent loops in a weakly meshed network are being opened during the ordering by the 'selection of breakpoints' procedure [7], converting it into an equivalent radial network.…”

Section: Configuration Pre-screeningmentioning

confidence: 99%

“…The algorithmic solution for configuration pre-screening in this method is extended from the network elements' ordering and re-ordering algorithms presented earlier in Reference [7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Load estimation for distribution systems with minimum information

Borozan

Rajaković

2004

Int Trans Elec Energy Syst

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SUMMARYThe operation of distribution systems requires a rather high number of planned or forced switching operations. In order to prepare them, it is necessary to estimate loads at different levels in the system. This paper proposes a load estimation method for distribution systems with minimum information available. The purpose of the load estimation method presented in this paper is the economic and efficient use of the available remote measurements in the distribution system considering typical measurements from the past and knowledge of load composition and load behaviour at the distribution transformers' level. The method is load-flow based, and its capability, efficiency and accuracy are demonstrated by application on a practical distribution system.

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Section: Network Branch Orderingmentioning

confidence: 99%

“…Existent loops in a weakly meshed network are being opened during the ordering by the 'selection of breakpoints' procedure [7], converting it into an equivalent radial network.…”

Section: Configuration Pre-screeningmentioning

confidence: 99%

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Load estimation for distribution systems with minimum information

Borozan

Rajaković

2004

Int Trans Elec Energy Syst

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“…Perhaps, Castro et al [7] proposed the first ever network reconfiguration algorithm using a switch table to represent the system configuration. In References [8,9], few improved reconfiguration algorithms have been presented. However, these algorithms are not very much general enough to be used in other applications.…”

Section: Introductionmentioning

confidence: 99%

A simplified approach for computer‐aided education of network reconfiguration in radial distribution systems

Prasad

Sahoo

2007

Comp Applic In Engineering

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In the present electrical engineering curriculum, power distribution engineering is one of the core courses offered to the students with power systems specialization. Since the distribution systems are mostly radial, the topics related to radial distribution system (RDS) are emphasized in this course. In RDS, network reconfiguration is frequently performed for optimizing system performance. Before the reconfiguration operation is physically performed, it is necessary to have computer-aided performance assessment of the reconfigured RDS from load flow analysis. For students' education, it is necessary that the students should familiarize themselves with computer simulation of RDS reconfiguration followed by load flow analysis. The purpose of this paper is to clearly and illustratively explain the various underlying sub-processes involved in the simulation experiment of RDS reconfiguration. The pseudo-codes in the form of flowcharts and complete C-language program codes for RDS reconfiguration are also included.

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“…Reconfiguração de redes aéreas de distribuição de energia elétrica é um problema de programação não linear inteiro misto (PNLIM) de natureza combinatória, que gera espaços de busca muito grandes, em que a exigência de radialidade é uma dificuldade adicional. Para resolução deste PNLIM são propostos algoritmos de otimização clássica, combinatórios, heurísticos e algoritmos que procuram explorar as vantagens da utilização conjunta de algoritmos heurísticos e combinatórios (Young et al 2002, Cinvalar et al 1988, Morelato et al 1989, Borozan et al 1995, Shirmohammadi et al 1989, Mantovani et al 2000, Peponis et al 1995, Kagan et al 1998e Zhou et al 1997.…”

Section: Introductionunclassified

Algoritmos evolutivos dedicados à reconfiguração de redes radiais de distribuição sob demandas fixas e variáveis: estudo dos operadores genéticos e parâmetros de controle

Cebrian

Romero

Mantovani

2005

Sba Controle & Automação

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This work presents the formulation and the computational implementation of an evolutionary algorithm (EA) to solve the reconfiguration problem of radial distribution systems under different loading condition. In a network reconfiguration problem, the string used for representation could have information on system topology. The codification adopted uses the decimal representation model. The mutation, crossover and selection operators for the reconfiguration algorithms are analyzed. The selection approached used are stochastic tournament, elitist and a mixed techniques that seeks to use the advantage of the stochastic tournament and elitist crossover operators. The crossover operator was developed considering the representation structure of the chromosome that maps the linkage branches and the system radiality exigency, and another structure that considers the topology and the network operation feasibility for the effectuate the genetic material change. Strategies to adequate the parameters and improve the efficiency of the evolutionary algorithm are proposed , emphasizing the dynamic variations of the crossover and mutation rates. The initial population RESUMONeste trabalho é apresentada a formulação e implementação computacional de um algoritmo evolutivo (AE) para resolver o problema de reconfiguração de sistemas de distribuição radiais sob diferentes condições de carregamento. Na codificação proposta para o problema utiliza-se modelo de representação decimal. Os operadores seleção, recombinação e mutação para o algoritmo de reconfiguração são analisados. As técnicas de seleção abordadas são torneio, elitismo e uma técnica mista que procura utilizar as vantagens do elitismo e do torneio. O operador recombinação foi desenvolvido considerando-se a estrutura de representação do cromossomo que mapeia os ramos de ligação e a exigência de radialidade do sistema, e uma outra estrutura que considera a topologia e a factibilidade de operação da rede para efetuar a troca do material genético. Estratégias para adequar

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Improved method for loss minimization in distribution networks

Cited by 66 publications

References 7 publications

Load estimation for distribution systems with minimum information

Load estimation for distribution systems with minimum information

A simplified approach for computer‐aided education of network reconfiguration in radial distribution systems

Algoritmos evolutivos dedicados à reconfiguração de redes radiais de distribuição sob demandas fixas e variáveis: estudo dos operadores genéticos e parâmetros de controle

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