Articles

Allocation and Capacity Optimization of Distributed Generation Considering Voltage Stability Index

  • JIANG Hao;WANG Shuang
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  • School of Electrical Engineering, Southeast University, Nanjing 210096, China

Received date: 2012-05-03

  Revised date: 2012-08-07

  Online published: 2012-09-28

Abstract

The power location and injected capacity of the Distributed Generation (DG) have a major impact on the distribution network. Based on the smallest power loss and voltage stability index, the optimization problem involving DG location and capacity is turned into a multi-objective nonlinear programming problem. A fuzzy multi-objective optimization algorithm is constructed in order to turn two optimal sub-objectives into a single object. The penalty function is introduced to deal with the beyond-boundaries of the node voltage and DG active power output. Inertia factor adaptive particle swarm optimization algorithm is adopted to solve the problem. In order to speed up the solving speed, firstly the active power loss incremental rates of the nodes are calculated and sequenced; then the nodes with larger absolute values are selected as the candidate nodes for DG installation. The simulation results show that the algorithm proposed has high converged efficiency, strong search ability, and adaptive ability.

Cite this article

JIANG Hao;WANG Shuang . Allocation and Capacity Optimization of Distributed Generation Considering Voltage Stability Index[J]. Science & Technology Review, 2012 , 30(27) : 41 -44 . DOI: 10.3981/j.issn.1000-7857.2012.27.005

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