Wide-Area Control of Power Systems Through Delayed Network Communication

Like general network communication, there are network-induced delays, data packet dropout and disordering in the communication of wide-area measurement systems. What impact do these factors have on the control of wide-area closed-loop power systems? This study aims at developing methods in order to...

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Bibliographic Details
Published in:IEEE transactions on control systems technology Vol. 20; no. 2; pp. 495 - 503
Main Authors: Wang, Shaobu, Meng, Xiangyu, Chen, Tongwen
Format: Journal Article
Language:English
Published: New York, NY IEEE 01.03.2012
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Applied sciences
Computer science; control theory; systems
Computer systems and distributed systems. User interface
Control systems
Control theory. Systems
Delay
Delay effects
Design engineering
Dropouts
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Linear matrix inequality (LMI) methods
Mathematical models
Modelling and identification
networked control systems (NCSs)
Networks
Operation. Load control. Reliability
Packets (communication)
Phasor measurement units
Power networks and lines
Power system control
Power system dynamics
Process control. Computer integrated manufacturing
Simulation
Software
Studies
time delays
wide-area measurement systems (WAMSs)
wide-area power systems (WAPSs)
Transmission protocol
Feedback regulation
Control synthesis
Delay system
Distributed system
networked control systems (NCSs)
time delays
Communication network
Modeling
Transmission time
wide-area power systems (WAPSs)
Closed feedback
Time varying system
Wide area network
Electrical network
Linear matrix inequality (LMI) methods
Telecommunication network
Distributed control
Linear matrix inequality
Delay time
System identification
Transmission loss
wide-area measurement systems (WAMSs)
ISSN:1063-6536, 1558-0865
Online Access:Get full text
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Description
Summary:Like general network communication, there are network-induced delays, data packet dropout and disordering in the communication of wide-area measurement systems. What impact do these factors have on the control of wide-area closed-loop power systems? This study aims at developing methods in order to take these factors into account in control of wide-area power systems. First, a networked control system model is constructed for wide-area closed-loop power systems; in this model, network-induced delays, data packet dropout, and disordering are captured by time-varying delays in wide-area measurement systems. Then, linear matrix inequality based methods are applied to design a controller for better power system performance using wide-area information as feedback signals. The controller can tolerate network-induced delays, data packet dropout, and disordering in the communication of wide-area measurement systems. Finally, we give some simulation results showing the effectiveness of our approach.
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ISSN:1063-6536
1558-0865
DOI:10.1109/TCST.2011.2116022