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Energies 2015, 8(12), 13508-13520; doi:10.3390/en81212381

Response Based Emergency Control System for Power System Transient Stability

State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi’an Jiaotong University, No. 28, Xianning West Road, Xi’an 710049, Shaanxi, China
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Author to whom correspondence should be addressed.
Academic Editor: Ying-Yi Hong
Received: 8 August 2015 / Revised: 11 November 2015 / Accepted: 13 November 2015 / Published: 30 November 2015
(This article belongs to the Special Issue Electric Power Systems Research)
View Full-Text   |   Download PDF [1834 KB, uploaded 30 November 2015]   |  

Abstract

A transient stability control system for the electric power system composed of a prediction method and a control method is proposed based on trajectory information. This system, which is independent of system parameters and models, can detect the transient stability of the electric power system quickly and provide the control law when the system is unstable. Firstly, system instability is detected by the characteristic concave or convex shape of the trajectory. Secondly, the control method is proposed based on the analysis of the slope of the state plane trajectory when the power system is unstable. Two control objectives are provided according to the methods of acquiring the far end point: one is the minimal cost to restore the system to a stable state; the other one is the minimal cost to limit the maximum swing angle. The simulation indicates that the mentioned transient stability control system is efficient. View Full-Text
Keywords: phase plane; transient instability prediction; transient stability control phase plane; transient instability prediction; transient stability control
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, H.; Zhang, B.; Hao, Z. Response Based Emergency Control System for Power System Transient Stability. Energies 2015, 8, 13508-13520.

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