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This paper focuses on the optimal allocation and operation of a Battery Energy Storage System along with optimal topology determination of a radial distribution system which is pre-occupied by Photovoltaic based Distributed Generation. Individual and combined benefits of the presence of Battery Energy Storage System and the reconfiguration of the network are analyzed from the perspective of enhancing...
The widespread installation of distributed generation system is increasing challenges because of the potential cost and benefits. Although the cost of distributed generation is high, it can improve the reliability of power supply, reduce environmental pollution and bring more economic benefits to the society. Firstly, the impact of distributed generation on economy and reliability of distribution...
The paper addresses the problem of distributed generation efficiency improvement in terms of its parallel operation with unified power network. The optimization is carried out for a set of criteria, including distribution network voltage levels, transmission lines current-carrying limits, distributed generation maximum capacity etc. The objective function was formulated as mixed-integer programming...
The paper addresses the problem of distributed generation efficient integration into the power system, taking into account the major technological parameters of the power network. The first part of the paper provides brief review of the mathematical approaches, used for power system optimization with distributed generation units from the following points of view: objective function formulation and...
With the rapid increase in electrical energy demand, distributed generations (DGs) have so far found their pivotal roles in the restructured environment of power distribution systems. As an indispensable step toward a more reliable power system, the optimal siting of DG, deemed to be the most techno-economically efficient and environment-friendly scheme, comes to the play and is profoundly taken under...
Multi-level fuzzy comprehensive evaluation method is a comprehensive analysis of combining method, which combines AHP with fuzzy comprehensive evaluation.It is an effective quantitative analysis method for technical and economic evaluation of distribution network with the difficult “fuzzy problems”. As the gradual formation of China's electricity market, distribution network has become an important...
Plug-in hybrid electric vehicles (PHEVs) are the next big thing in the electric transportation market. While much work has been done to detail what economic costs and benefits PHEVs will have on consumers and producers alike, it seems that the more important question is “what impact will PHEVs have on distribution networks nationwide?”. This paper finds that the impact of PHEVs on the distribution...
This paper presents a study of a distribution network of the large city in a former republic of the Soviet Union. The current situation is analyzed and a new network concept is developed. The major part of the current electrical network has been built in the 1960th and 70th using old Russian technology. The economy develops strongly in the last years, and it can be estimated that the total consumption...
This paper studies the problem of evaluation index system and weight of index system. Firstly, we define energy efficiency of distribution transformer and discuss the influence of energy efficiency of distribution transformers on distribution network to make the index more general. Secondly, we establish an index system of distribution network for economic evaluation. Thirdly, an improved AHP (Analytic...
Recently, most methods for replacement decision-making of electrical equipments in distribution network have some limitations like insufficient concern with reliability and economy. As a solution, a new method considering both network reliability and equipment economy is presented in this paper. It consists of two parts: equipment-replacing necessity decision-making, which is used for all electrical...
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