Optimal Siting and Sizing of Distributed Generators in Distribution Systems Considering Cost of Operation Risk

Qingwu Gong, Jiazhi Lei and Jun Ye
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Qingwu Gong: School of Electrical Engineering, Wuhan University, Wuhan 430072, China
Jiazhi Lei: School of Electrical Engineering, Wuhan University, Wuhan 430072, China
Jun Ye: School of Electrical Engineering, Wuhan University, Wuhan 430072, China

Energies, 2016, vol. 9, issue 1, 1-18

Abstract: With the penetration of distributed generators (DGs), operation planning studies are essential in maintaining and operating a reliable and secure power system. Appropriate siting and sizing of DGs could lead to many positive effects forthe distribution system concerned, such as the reduced total costs associated with DGs, reduced network losses, and improved voltage profiles and enhanced power-supply reliability. In this paper, expected load interruption cost is used as the assessment of operation risk in distribution systems, which is assessed by the point estimate method (PEM). In light with the costs of system operation planning, a novel mathematical model of chance constrained programming (CCP) framework for optimal siting and sizing of DGs in distribution systems is proposed considering the uncertainties of DGs. And then, a hybrid genetic algorithm (HGA), which combines the GA with traditional optimization methods, is employed to solve the proposed CCP model. Finally,the feasibility and effectiveness of the proposed CCP model are verified by the modified IEEE 30-bus system, and the test results have demonstrated that this proposed CCP model is more reasonable to determine the siting and sizing of DGs compared with traditional CCP model.

Keywords: distributed generators; siting and sizing; distribution systems; point estimate method; hybrid genetic algorithm; chance constrained programming (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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