Large-Scale Distribution Planning—Part I: Simultaneous Network and Transformer Optimization

This paper is the first of two and presents a planning methodology for low-voltage distribution networks. Combined optimization of transformers and associated networks is performed, considering the street layout which connects the different consumers. In this first part, micro-optimization, the planning zone is divided into small zones, mini-zones, which are optimized independently. A repetitive procedure is used in order to locate transformers using clustering techniques. Optimum capacity, customers to be satisfied, the optimum network to be used and losses associated to this network are determined for each location. The methodology is applied over an area of 12.9 km2 with nearly 20 215 consumers. In the second paper, two macro-optimization methodologies are discussed based on the planning results for each mini-zone, one based on the Voronoi polygons in order to improve load grouping into mini-zones and the other based on the combination of neighboring networks into a single transformer by means of a Tabu search. Finally, the methodology is applied to a zone with a surface of 2118 km2 and approximately 1300 000 customers.

[1]  Swapan Kumar Goswami.  Distribution system planning using branch exchange technique , 1997 .

[2]  I.J. Ramirez-Rosado,et al.  Pseudodynamic planning for expansion of power distribution systems , 1991, IEEE Power Engineering Review.

[3]  I. J. Ramírez-Rosado,et al.  Possibilistic model based on fuzzy sets for the multiobjective optimal planning of electric power distribution networks , 2004, IEEE Transactions on Power Systems.

[4]  K. Aoki,et al.  New approximate optimization method for distribution system planning , 1990 .

[5]  E. Miguez,et al.  An Improved Branch Exchange Algorithm for Large Scale Distribution Network Planning , 2002, IEEE Power Engineering Review.

[6]  E. Miguez,et al.  Application of evolutionary algorithms for the planning of urban distribution networks of medium voltage , 2002 .

[7]  K. Tomsovic,et al.  Distribution expansion problem: formulation and practicality for a multistage globally optimal solution , 2001, 2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194).

[8]  Yasuhiro Hayashi,et al.  A new algorithm for distribution feeder expansion planning in urban area , 1998 .

[9]  J. A. Domínguez-Navarro,et al.  Integral planning of primary-secondary distribution systems using mixed integer linear programming , 2005, IEEE Transactions on Power Systems.

[10]  S.H. Hosseini,et al.  A new approach for substation expansion planning , 2006, IEEE Transactions on Power Systems.

[11]  S. S. Venkata,et al.  Distribution System Planning through a Quadratic Mixed Integer Programming Approach , 1987, IEEE Transactions on Power Delivery.

[12]  Eloy Díaz Dorado.  Herramientas para la planificación de redes de baja tensión y media tensión urbanas , 1999 .

[13]  Ignacio J. Ramirez-Rosado,et al.  Reliability and Costs Optimization for Distribution Networks Expansion Using an Evolutionary Algorithm , 1989 .

[14]  D.L. Wall,et al.  An Optimization Model for Planning Radial Distribution Networks , 1979, IEEE Transactions on Power Apparatus and Systems.

[15]  J. C. Pidre,et al.  Planning of large rural low-voltage networks using evolution strategies , 2003 .

[16]  Enver Masud.  An Interactive Procedure for Sizing and Timing Distribution Substations Using Optimization Techniques , 1974 .

[17]  Khalil S. Hindi,et al.  Design of low-voltage distribution networks: a mathematical programming method , 1977 .

[18]  Ignacio J. Ramirez-Rosado,et al.  Genetic algorithms applied to the design of large power distribution systems , 1998 .

[19]  H.M. Khodr,et al.  Ant colony system algorithm for the planning of primary distribution circuits , 2004, IEEE Transactions on Power Systems.

[20]  Magdy M. A. Salama,et al.  A planning model for siting, sizing and timing of distribution substations and defining the associated service area , 2002 .

[21]  I. J. Ramírez-Rosado,et al.  New multiobjective tabu search algorithm for fuzzy optimal planning of power distribution systems , 2006, IEEE Transactions on Power Systems.

[22]  Raul Edgardo,et al.  PLANIFICACION DE LA EXPANSION DE UN SISTEMA DE DISTRIBUCION VIA ALGORITMO DE DESCOMPOSICION DE BENDERS , 1994 .

[23]  Koichi Nara,et al.  Distribution systems expansion planning by multi-stage branch exchange , 1992 .

[24]  G. Thompson,et al.  A Branch and Bound Model for Choosing Optimal Substation Locations , 1981, IEEE Transactions on Power Apparatus and Systems.

[25]  Vladimiro Miranda,et al.  Genetic algorithms in optimal multistage distribution network planning , 1994 .

[26]  R. N. Adams,et al.  Optimal planning of power networks using mixed-integer programming. Part 1: Static and time-phased network synthesis , 1974 .

[27]  R. Hackam,et al.  Dynamic solution of distribution planning in intermediate time range , 1988 .

[28]  M. W. Gustafson,et al.  The equivalent hours loss factor revisited (power systems) , 1988 .

[29]  Luís Ferreira,et al.  Distribution network expansion planning under uncertainty: a hedging algorithm in an evolutionary approach , 2000 .

[30]  H. N. Tram,et al.  Optimal conductor selection in planning radial distribution systems , 1988 .

[31]  Jesús Pascual Peco González.  Modelo de cobertura geográfica de una red de distribución de energía eléctrica , 2001 .

[32]  T. Gönen,et al.  Review of distribution system planning models: a model for optimal multistage planning , 1986 .

[33]  D.M. Crawford,et al.  A mathematical optimization technique for locating and sizing distribution substations, and deriving their optimal service areas , 1975, IEEE Transactions on Power Apparatus and Systems.

[34]  B. Foote,et al.  Distribution-system planning using mixed-integer programming , 1981 .

[35]  A. Pahwa,et al.  Optimal Selection of Conductors for Distribution Feeders , 2002, IEEE Power Engineering Review.