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Appl. Sci. 2016, 6(1), 14; doi:10.3390/app6010014

A Synchrophasor Based Optimal Voltage Control Scheme with Successive Voltage Stability Margin Improvement

1
Department of Electrical Engineering, Feng Chia University (FCU), No.100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
2
Department of Information Engineering and Computer Science, Feng Chia University (FCU), No.100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
3
Department of Automatic Control Engineering, Feng Chia University (FCU), No.100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Chien-Hung Liu
Received: 30 November 2015 / Revised: 28 December 2015 / Accepted: 4 January 2016 / Published: 7 January 2016
View Full-Text   |   Download PDF [1850 KB, uploaded 7 January 2016]   |  

Abstract

This paper proposes an optimal control scheme based on a synchronized phasor (synchrophasor) for power system secondary voltage control. The framework covers voltage stability monitoring and control. Specifically, a voltage stability margin estimation algorithm is developed and built in the newly designed adaptive secondary voltage control (ASVC) method to achieve more reliable and efficient voltage regulation in power systems. This new approach is applied to improve voltage profile across the entire power grid by an optimized plan for VAR (reactive power) sources allocation; therefore, voltage stability margin of a power system can be increased to reduce the risk of voltage collapse. An extensive simulation study on the IEEE 30-bus test system is carried out to demonstrate the feasibility and effectiveness of the proposed scheme. View Full-Text
Keywords: PHASOR measurement unit; power system control; synchronized phasor; secondary voltage control PHASOR measurement unit; power system control; synchronized phasor; secondary voltage 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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Su, H.-Y.; Chen, Y.-C.; Hsu, Y.-L. A Synchrophasor Based Optimal Voltage Control Scheme with Successive Voltage Stability Margin Improvement. Appl. Sci. 2016, 6, 14.

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