Wide-area TCSC controller design in consideration of feedback signals' time delays

The recent advances in wide-area measurement system (WMAS) is driving power systems to the trend of wide-area monitoring and control. In this trend, the impact of time delays introduced by remote signal transmission and processing in WAMS has to be considered. This paper investigates the wide-area c...

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Main Authors: Jiang Quanyuan, Zou Zhenyu, Cao Yijia
Format: Conference Proceeding
Language:English
Subjects:
Control systems
Delay effects
Feedback
Power capacitors
Power system dynamics
Power system measurements
Power system modeling
Signal design
Thyristors
Wide area measurements
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Zou Zhenyu
Cao Yijia
description The recent advances in wide-area measurement system (WMAS) is driving power systems to the trend of wide-area monitoring and control. In this trend, the impact of time delays introduced by remote signal transmission and processing in WAMS has to be considered. This paper investigates the wide-area controller design problem of power system in the presence of output feedback delays in WAMS. Firstly, a simple example demonstrates the negative effects of feedback signals' time delays of WAMS on the dynamic performances of thyristor controlled series compensator (TCSC). In order to eliminate the negative effects of time delays, a novel approach based on linear matrix inequality (LMI) technique and Hankel model order-reduced algorithms is proposed to design an effective TCSC controller. Two cases, a single-machine-infinite-bus power system and New England test power system (NETPS), verify that the derived TCSC controllers can stabilize the systems for various time delays.
doi_str_mv 10.1109/PES.2005.1489496
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subjects Control systems
Delay effects
Feedback
Power capacitors
Power system dynamics
Power system measurements
Power system modeling
Signal design
Thyristors
Wide area measurements
title Wide-area TCSC controller design in consideration of feedback signals' time delays
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