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Optimal allocation and sizing of DGs in distribution networks

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Authors
Ziari, I.
Ledwich, G.
Ghosh, Arindam
Cornforth, D.
Wishart, M.
Date
2010
Type
Conference Paper

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Ziari, I. and Ledwich, G. and Ghosh, A. and Cornforth, D. and Wishart, M. 2010. Optimal allocation and sizing of DGs in distribution networks, in - (ed), IEEE PES General Meeting, PES 2010, Jul 25 2010. US: Institute of Electrical and Electronics Engineers ( IEEE ).
Source Title
2010 IEEE Power and Energy Society General Meeting
Source Conference
IEEE PES General Meeting, PES 2010
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Abstract

In this paper, the placement and sizing of Distributed Generators (DG) in distribution networks are determined using optimization. The objective is to minimize the loss and to improve the reliability at lowest cost. The constraints are the bus voltage, feeder current and the reactive power flowing back to the source side. The placement and size of DGs are optimized using a combination of Discrete Particle Swarm Optimization (DPSO) and Genetic Algorithm (GA). This increases the diversity of the optimizing variables in DPSO not to be trapped in a local minimum. To evaluate the proposed algorithm, the semi-urban 37-bus distribution system connected at bus 2 of the Roy Billinton Test System (RBTS), which is located at the secondary side of a 33/11 kV distribution substation, is used. The results illustrate the efficiency of the proposed method.