Statistical Analysis and Forecasting of Damping in the Nordic Power System
Författare
Summary, in English
This paper presents an application of multiple linear regression (MLR) to extract significant correlations between damping of electromechanical modes and system operating conditions and to forecast future damping values, based on existing day-ahead market forecasts for power flows and generation. The presented analysis uses measurements from the Nordic power system. First, a static MLR model is developed to explain the variability of the damping of the 0.35-Hz inter-area mode in the Nordic system. Together with the static model, a dynamic MLR model is used for forecasting the damping 24 hours ahead, using day-ahead market forecasts. Test results indicate the proposed methods are able to correctly predict about 90% of the low damped operating conditions observed during a year, if day-ahead market forecasts are accurate. These results suggest that the methods could be used to issue early warnings about future operating conditions with low damping.
Avdelning/ar
Publiceringsår
2015
Språk
Engelska
Sidor
306-315
Publikation/Tidskrift/Serie
IEEE Transactions on Power Systems
Volym
30
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Other Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- Damping forecast
- electromechanical oscillations
- multiple linear
- regression (MLR)
- phasor measurement unit (PMU) data
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0885-8950