Details of Grant 

EPSRC Reference:	GR/S06158/01
Title:	Robust Damping of Oscillations in Large Power Grid Through FACTS Controllers Employing Global Signals
Principal Investigator:	Pal, Professor B
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Electrical and Electronic Engineering
Organisation:	Imperial College London
Scheme:	First Grant Scheme Pre-FEC
Starts:	01 April 2003	Ends:	31 March 2006	Value (£):	123,562
EPSRC Research Topic Classifications:	Power Sys Man, Prot & Control
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
Inter-area oscillations are major bottlenecks in transmitting bulk power between large utilities. These oscillations are triggered by events of varied nature and are traditionally poorly damped. The frequency of oscillation also depends on various operating conditions. This varied nature of the operating conditions calls for robust control action. Growing environmental concerns and restricted financial resources are forcing systems to operate close to their thermal limit by employing FACTS conrollers. These controllers enhance the steady state available transfer capacity but result in adverse interactive influence in the critical frequency range ( 0.1 to 2Hz) . This warrants a comprehensive approach to design control action in an effort to minimise these interactions. This proposal aims to properly model and interface the steady state and dynamic characteristics of UPFCs to an interconnected power system suffering from inherent inter-area oscillatory problems. A second aim is to propose criteria for selecting the most appropriate stabilising signals. The concept of Wide Area Measurement technology using GPS time signals will be utilised for providing remote/synthesised signals. The Krylov space technique will be used to extend model reduction techniques to power systems. The SSV approach to centralised control design in the LMI framework will be used. The control performance will be tested against small and large disturbances. The performance of the SSV based design will be compared with the ones obtained from conventional design techniques.
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Organisation Website:	http://www.imperial.ac.uk