An extended Kalman particle filter for power system dynamic state estimation
ISSN: 0332-1649
Article publication date: 2 October 2018
Issue publication date: 22 November 2018
Abstract
Purpose
The purpose of this paper is to propose an extended Kalman particle filter (EPF) approach for dynamic state estimation of synchronous machine using the phasor measurement unit’s measurements.
Design/methodology/approach
EPF combines the extended Kalman filter (EKF) with the particle filter (PF) to accurately estimate the dynamic states of synchronous machine. EKF is used to make particles of PF transfer to the likelihood distribution from the previous distribution. Therefore, the sample impoverishment in the implementation of PF is able to be avoided.
Findings
The proposed method is capable of estimating the dynamic states of synchronous machine with high accuracy. The real-time capability of this method is also acceptable.
Practical implications
The effectiveness of the proposed approach is tested on IEEE 30-bus system.
Originality/value
Introducing EKF into PF, EPF is proposed to estimate the dynamic states of synchronous machine. The accuracy of a dynamic state estimation is increased.
Keywords
Citation
Yu, Y., Wang, Z. and Lu, C. (2018), "An extended Kalman particle filter for power system dynamic state estimation", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 37 No. 6, pp. 1993-2005. https://doi.org/10.1108/COMPEL-11-2017-0493
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited