Particle filter in power system state estimation - bad measurement data and branch disconnection
[ 1 ] Instytut Automatyki i Inżynierii Informatycznej, Wydział Elektryczny, Politechnika Poznańska | [ 2 ] Wydział Elektryczny, Politechnika Poznańska | [ P ] employee | [ D ] phd student
2015
scientific article
english
- bad data
- branch disconnection measurement errors
- particle filter
- power system
- state estimation
EN An approach to power system state estimation using a particle filter has been proposed in the paper. Two problems have been taken into account during research, namely bad measurements data and a network structure modification with rapid changes of the state variables. For each case the modification of the algorithm has been proposed. It has also been observed that anti-zero bias modification has a very positive influence on the obtained results (few orders of magnitude, in comparison to the standard particle filter), and additional calculations are quite symbolic. In the second problem, used modification also improved estimation quality of the state variables. The obtained results have been compared to the extended Kalman filter method.
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