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Determination of Reactive Power Compensation Considering Large Disturbances for Power Flow Solvability in the Korean Power System
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 Title & Authors
Determination of Reactive Power Compensation Considering Large Disturbances for Power Flow Solvability in the Korean Power System
Seo, Sang-Soo; Kang, Sang-Gyun; Lee, Byong-Jun; Kim, Tae-Kyun; Song, Hwa-Chang;
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 Abstract
This paper proposes a methodology using a tool based on the branch-parameter continuation power flow (BCPF) in order to restore the power flow solvability in unsolvable contingencies. A specified contingency from a set of transmission line contingencies is modeled, considering the transient analysis and practice in the Korean power system. This tool traces a solution path that satisfies the power flow equations with respect to the variation of the branch parameter. At a critical point, in which the branch parameter can move on to a maximum value, a sensitivity analysis with a normal vector is performed to identify the most effective compensation. With the sensitivity information, the location of the reactive power compensation is determined and the effectiveness of the sensitivity information is verified to restore the solvability. In the simulation, the proposed framework is then applied to the Korean power system.
 Keywords
Reactive power compensation;Power flow solvability;Sensitivity analysis;Transient analysis;Korean power systems;
 Language
English
 Cited by
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A New Approach for Corrective and Preventive Control to Unsolvable Case in Power Networks having DERs, Journal of Electrical Engineering and Technology, 2013, 8, 3, 411  crossref(new windwow)
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