American Journal of Electrical and Electronic Engineering
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American Journal of Electrical and Electronic Engineering. 2016, 4(2), 40-48
DOI: 10.12691/ajeee-4-2-1
Open AccessArticle

Optimal Placement of D-STATCOMs into the Radial Distribution Networks in the Presence of Distributed Generations

Babak Safari Chabok1 and Ahmad Ashouri2,

1Department of Power System Engineering, Roudsar and Amlash Branch, Islamic Azad University, Roudsar, Iran

2Department of Electrical Engineering, Khodabandeh Branch, Islamic Azad University, Khodabandeh, Iran

Pub. Date: March 11, 2016

Cite this paper:
Babak Safari Chabok and Ahmad Ashouri. Optimal Placement of D-STATCOMs into the Radial Distribution Networks in the Presence of Distributed Generations. American Journal of Electrical and Electronic Engineering. 2016; 4(2):40-48. doi: 10.12691/ajeee-4-2-1


This paper proposes a combination of Discrete Imperialistic Competition and Nelder-Mead algorithms to solve D-STATCOMs placement optimization problem. It is assumed that optimal number, locations and sizes of D-STATCOMs are determined in radial distribution network while Distributed Generations are previously installed in it. Indeed, we focus on voltage control and concept of reactive power management in annual scheduling time interval. Objective function is defined in terms of network active power losses and voltage stability characteristic at different load levels by appropriate weighting factors. Voltage Stability Index (VSI) is applied to identify the weak buses in radial distribution network. To validate performance and effectiveness of proposed DICA-NM hybrid algorithm, simulation studies are applied on the 30-bus IEEE radial distribution test feeder. Finally, numerical results for some important network variables have been compared in three different case studies.

Discrete Imperialistic Competition Algorithm and Nelder-Mead (DICA-NM) Distributed Generations (DGs) location and Size of D-STATCOM Forward and Backward Power Flow Voltage Stability Index (VSI)

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