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Fundamental Perform...
Fundamental Performance Limitations in Utilizing HVDC to Damp Interarea Modes
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- Björk, Joakim (author)
- KTH,Reglerteknik
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- Johansson, Karl Henrik (author)
- KTH,Reglerteknik
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- Harnefors, Lennart, 1968- (author)
- KTH,Elkraftteknik
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(creator_code:org_t)
- IEEE, 2019
- 2019
- English.
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In: IEEE Transactions on Power Systems. - : IEEE. - 0885-8950 .- 1558-0679. ; 34:2, s. 1095-1104
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- This paper considers power oscillation damping (POD) using active power modulation of high-voltage dc transmissions. An analytical study of how the proximity between interarea modal frequencies in two interconnected asynchronous grids puts a fundamental limit to the achievable performance is presented. It is shown that the ratio between the modal frequencies is the sole factor determining the achievable nominal performance. To illustrate the inherent limitations, simulations using a proportional controller tuned to optimize performance in terms of POD are done on a simplified two-machine model. The influence of limited system information and unmodeled dynamics is shown. The analytical result is then further validated on a realistic model with two interconnected 32-bus networks.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- Controllability
- frequency control
- HVDC transmission control
- interarea oscillations
- power oscillation damping
- small-signal stability
Publication and Content Type
- ref (subject category)
- art (subject category)
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