Preventive Control Strategy of Cascading Fault considering Safety and Economy

Deng Hui-Qiong; Luo Jie; Li Chen-ChenLi Pei-QiangZheng Rong-Jin

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Preventive Control Strategy of Cascading Fault considering Safety and Economy

机译：Preventive Control Strategy of Cascading Fault considering Safety and Economy

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The operation and structure of the power system are becoming increasingly complex, and the probability of cascading fault increases. To this end, this paper proposes a cascading fault preventive control strategy that considers safety and the economy. First is to give a mathematical form to discriminate the cascading fault according to the action characteristics of the current-type backup protection. Second, the safety and economy of the system are evaluated in terms of power grid safety margin and generation operation cost, respectively, the initial faults are selected based on the power grid vulnerability and safety margin, and a cascading fault preventive control model is constructed for different initial faults' scenarios. The model is a two-layer optimization mathematical model, with the inner model being solved by particle swarm optimization to minimize the power grid safety margin. The outer model is solved by the multiobjective algorithm to minimize generation cost and maximizing power grid safety margin. Finally, the calculated Pareto set is evaluated using fuzzy set theory to determine the optimal generator output strategy. The feasibility of the proposed method is verified by conducting a simulation study with the IEEE39 node system as an example./p

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来源
《Journal of Electrical and Computer Engineering》 |2021年第1期|4554236.1-4554236.12|共12页
作者
Deng Hui-Qiong; Luo Jie; Li Chen-ChenLi Pei-QiangZheng Rong-Jin;
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Fujian Univ Technol, Sch Elect Elect Engn & Phys, Fuzhou 350118, Peoples R China|Fujian Prov Univ, Engn Res Ctr Simulat Anal & Integrated Control Sm, Fuzhou, Fujian, Peoples R China;

Fujian Univ Technol, Sch Elect Elect Engn & Phys, Fuzhou 350118, Peoples R China|Fujian Univ Technol, Sch Design, Fuzhou 350118, Peoples R China;

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Preventive Control Strategy of Cascading Fault considering Safety and Economy

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