Investigation & Minimization of Loss in Distribution System
Issue:
Volume 5, Issue 5, September 2016
Pages:
45-50
Received:
28 July 2016
Accepted:
5 September 2016
Published:
14 October 2016
Abstract: For efficient and reliable operation of distribution system, the reactive power and voltage should be controlled so that energy loss should be minimized, bus-bar voltage should be maintained at acceptable limit (0.95P.U min and 1.05P.U max) and three phase voltages should approach as close as to the balanced system voltage . This paper work presents study of distribution system loss in the case of Textile factory, ArbaMinch town. The study makes a detail work on power system issues such as energy loss in the distribution system and its reduction techniques, reactive power flow and its compensation, power factor and voltage quality indicators such as voltage unbalance and voltage regulation. To achieve the objective, the existing distribution system of study site is modeled by using DIgSILENT Power Factory Software and simulation is carried out for unbalanced and balanced operation conditions. Clamp-on meter measurement is used to determine the load demand and line to line voltages. The results obtained for loss, power factor, voltage regulation and voltage unbalance are compared against accepted standards of IEEE, NEC & Ethiopian Electric Power Corporation (EEPCo) and possible solutions are recommended based on results obtained.
Abstract: For efficient and reliable operation of distribution system, the reactive power and voltage should be controlled so that energy loss should be minimized, bus-bar voltage should be maintained at acceptable limit (0.95P.U min and 1.05P.U max) and three phase voltages should approach as close as to the balanced system voltage . This paper work present...
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Wrong Region and Bottleneck Analysis of the Self-healing System in Smart Grid
Liu Yong-chun,
Lin Yu-zi,
Zhang Wen-sheng
Issue:
Volume 5, Issue 5, September 2016
Pages:
51-58
Received:
12 September 2016
Accepted:
23 September 2016
Published:
15 October 2016
Abstract: The research on the self-healing system in smart grid is a worldwide research topic, and it has very important significance for the safe and stable operation of the power grid. The research topic was proposed by America Electric Power Science Research Institute since the beginning of the century, over the past ten years, the research has still no substantive progress. Therefore, this paper, with a large number of literature data and examples as the basis, by means of contrast, analyzes the existing problems and misunderstandings in the study of the topic, reveals the bottleneck problems encountered in the process of the research, and specifies the research of the self-healing system to quickly restore power as the main objective, will be the recovery control of the self-healing as the focus of the self-healing system research, so as to point out the direction for the further research of the subject, in order to make the majority of researchers in the future research avoid detours, early results.
Abstract: The research on the self-healing system in smart grid is a worldwide research topic, and it has very important significance for the safe and stable operation of the power grid. The research topic was proposed by America Electric Power Science Research Institute since the beginning of the century, over the past ten years, the research has still no s...
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