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Mixed-sensitivity approach to H infin; control of power system oscillations employing multiple FACTS devices
journal contribution
posted on 2023-06-08, 13:50 authored by Balarko Chaudhuri, Bikash C Pal, Argyrios C Zolotas, Imad M Jaimoukha, Tim C GreenThis paper demonstrates the enhancement of inter-area mode damping by multiple flexible AC transmission systems (FACTS) devices. Power system damping control design is formulated as an output disturbance rejection problem. A decentralized H infin; damping control design based on the mixed-sensitivity formulation in the linear matrix inequality (LMI) framework is carried out. A systematic procedure for selecting the weights for shaping the open loop plant for control design is suggested. A 16-machine, five-area study system reinforced with a controllable series capacitor (CSC), a static VAr compensator (SVC), and a controllable phase shifter (CPS) at different locations is considered. The controllers designed for these devices are found to effectively damp out inter-area oscillations. The damping performance of the controllers is examined in the frequency and time domains for various operating scenarios. The controllers are found to be robust in the face of varying power-flow patterns, nature of loads, tie-line strengths, and system nonlinearities, including device saturations
History
Publication status
- Published
Journal
IEEE Transactions on Power SystemsISSN
0885-8950Publisher
Institute of Electrical and Electronics EngineersExternal DOI
Issue
3Volume
18Page range
1149 - 1156Department affiliated with
- Engineering and Design Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-11-21Usage metrics
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