Wide-area control through aggregation of power systems

Arash Vahidnia; Gerard Ledwich; Edward Palmer; Arindam Ghosh

Wide-area control through aggregation of power systems

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Author(s): Arash Vahidnia ¹ ; Gerard Ledwich ¹ ; Edward Palmer ¹ ; Arindam Ghosh ¹
- Affiliations: 1: School of Electrical Engineering and Computer Science, Queensland University of Technology, Brisbane, Australia
Source: Volume 9, Issue 12, 04 September 2015, p. 1292 – 1300
DOI: 10.1049/iet-gtd.2014.1206 , Print ISSN 1751-8687, Online ISSN 1751-8695

Received 13/04/2014, Accepted 08/02/2015, Published 02/04/2015

This study proposes a new method for stabilising disturbed power systems using wide-area measurement and controllable devices. A new control algorithm based on kinetic energy is proposed to be applied on the controllers to improve the first swing stability of power systems following large disturbances while also damping the subsequent inter-area oscillations. The wide-area controller is implemented by using the Kalman filter estimation of the area-based model of the system, to stabilise the inter-area dynamic and improve the stability margin of the system. The proposed approach is simulated on several test systems and the results show significant improvement in the first swing and damping stability of the test systems.

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