Combining Second Order Central Difference Discretization with Extended Kalman Filter for Rotor Speed and Flux Estimation of a Doubly-fed Induction Generator

This paper combines second order central difference discretization method with Extended Kalman Filter (EKF) in order to estimate the rotor speed and flux of a Doubly-Fed Induction Generator (DFIG). A second order discretization yields to a multistep numerical integration method which is known to have better accuracy than single step Euler method. Extended Kalman Filter (EKF) is widely used to esti...