A decision tree-based on-line preventive control strategy for power system transient instability prevention

Yan Xu, Zhao Dong, Rui Zhang and Kit Po Wong

International Journal of Systems Science, 2014, vol. 45, issue 2, 176-186

Abstract: Maintaining transient stability is a basic requirement for secure power system operations. Preventive control deals with modifying the system operating point to withstand probable contingencies. In this article, a decision tree (DT)-based on-line preventive control strategy is proposed for transient instability prevention of power systems. Given a stability database, a distance-based feature estimation algorithm is first applied to identify the critical generators, which are then used as features to develop a DT. By interpreting the splitting rules of DT, preventive control is realised by formulating the rules in a standard optimal power flow model and solving it. The proposed method is transparent in control mechanism, on-line computation compatible and convenient to deal with multi-contingency. The effectiveness and efficiency of the method has been verified on New England 10-machine 39-bus test system.

Date: 2014
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DOI: 10.1080/00207721.2011.626906

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