Extended Kalman Filter based State Estimation of Wind Turbine

 International Journal of Engineering Trends and Technology (IJETT) © 2013 by IJETT Journal Volume-5 Number-4 Year of Publication : 2013 Authors : Kavitha N , Vijayachitra S

Citation

Kavitha N , Vijayachitra S. "Extended Kalman Filter based State Estimation of Wind Turbine". International Journal of Engineering Trends and Technology (IJETT). V5(4):183-187 Nov 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

State estimation provides the best possible approximation for the state of the system by processing the available information. In the proposed work, the state estimation technique is used for the state estimation of wind turbine. Modern wind turbines operate in a wide range of wind speeds. To enable wind turbine operation in such a variety of operating conditions, sophisticated control and estimation algorithms are needed. The theoretical basis of Extended Kalman Filter algorithm is explained in detail and performance is tested with the simulation. A nonlinear state estimator named Extended Kalman Filter can be used for estimating the states of wind turbine. The Extended Kalman Filter is a recursive estimator that can be decomposed into two phases such as prediction and correction performed at every time instant. The states estimated by using Extended Kalman Filter for wind turbine application includes rotor speed of turbine, tower top displacement and its velocity.

References

[1] A.W.Manyonge, R.M.Ochieng, F.N.Onyango and J.M.Shichika “Mathematical Modelling of Wind Turbine in a Wind Energy Conversion System” Applied Mathematical Sciences,Vol.6, ,No.91,4527-4536, 2012
[2] Mate Jelavic, Nedjeljko Peric, Ivan Petrovic, “Damping of Wind Turbine Tower Oscillations through Rotor Speed Control”, Energy Procedia, 2008.
[3] Petrovic.V, Peric.N, “Identification of wind turbine mathematical model suitable for controller design ” MIPRO, Proceedings of 35th International convention, 2011.
[4] Paul Frogerais,Jean-Jacques Bellanger and Lofti Senhadji, “Various ways to compute the Continuos-Discrete Extended Kalman Filter” IEEE Transactions Autom.Control.,Vol.57 No.4 pp 1000-1008,2012
[5] Burton,T., Sharpe,D., Jankings,N., and Bossanyi,E, ‘Wind Energy Handbook’. John Wiley&Sons, 2001.
[6] Judd and Smith, “Non linear State Estimation, Indistinguishable States and Extended Kalman Filter” ,physica D, Vol.183, pp. 273-281, 2012.

Keywords
Extended Kalman Filter, Modelling, state estimation, wind turbine.