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A study on LQG/LTR control for damping inter-area oscillations in power systems
journal contribution
posted on 2023-06-08, 13:50 authored by Argyrios C Zolotas, Balarko Chaudhuri, Imad M Jaimoukha, Petr KorbaThis brief presents results on a robust linear quadratic Gaussian (LQG) damping control scheme for improving the inter-area mode oscillations of power systems. A technique is also proposed to guarantee minimum-phase/well-damped transmission zeros by appropriately "squaring" the design plant, for the purposes of efficient robust recovery. A 7th-order multiple-input single-output (MISO) centralized controller is designed for a 16-machine, 5-area power system (138th order) reinforced with a thyristor-controlled series capacitor (TCSC) to improve the damping of the critical inter-area modes by employing appropriate global signal measurements. Loop transfer recovery (LTR) is then applied to reinforce controller robustness in the case of faults and unknown disturbances. The performance of the designed system is assessed in the frequency domain and via appropriate time-domain simulations based upon the nonlinear model under a variety of scenaria
History
Publication status
- Published
Journal
IEEE Transactions on Control Systems TechnologyISSN
1063-6536Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Issue
1Volume
15Page range
151 -160Department affiliated with
- Engineering and Design Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-11-21Usage metrics
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