Controlled Islanding Power Systems

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Azizi, Sadegh | 2010

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 40415 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Ranjbar, Ali Mohammad
Abstract:
Controlled islanding, also known as system splitting, can effectively prevent blackouts of power system by separating it into two or more islands. To make each island reach steady state point by available measures, each island must be observable. This paper proposes a new modified three phase method to find proper splitting strategy, considering observability as a new constraint, to minimize effect of system splitting on network observability. Some techniques about strategy searching are introduced to increase its speediness and related algorithms are described in detail in this thesis. The simulation results presented show efficiency of method in finding proper splitting strategies. In the rest of this thesis a new method has been introduced for determining switching scenario in controlled islanding. OMIB equivalent of system is used to assess transient stability margin due to implementation of each scenario and one algorithm is presented to maximize it. So we could choose a scenario has the best stability margin.
Keywords:
Power Network ; Observability ; Transient Stability

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