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On-line Voltage Instability Prediction using an Artificial Neural Network

Hagmar, Hannes, 1990 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Le, Anh Tuan, 1974 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Carlson, Ola, 1955 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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Eriksson, Robert (author)
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 (creator_code:org_t)
2019
2019
English.
In: 2019 IEEE Milan PowerTech, PowerTech 2019.
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • In this paper, a predictive method to detect voltage instability using an artificial neural network is presented. The proposed method allows transmission  system operators to predict long-term voltage instability far before the system voltage stability has been degraded, allowing swift and cost-effective control actions. The predictor is tested and trained on the Nordic32 test system for a wide range of different contingencies. The predictor proves to be accurate in providing early warnings of impending voltage instability, allowing 96.3 % of all test cases being correctly classified only seconds after a contingency. The method is proposed to be used as an effective tool for supplementary voltage instability detection for transmission system operators.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Annan teknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Other Engineering and Technologies (hsv//eng)
TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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

voltage stability
synchronized phasor measurements
emergency control
Voltage instability prediction
artificial neural networks

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