Hamid Toshani
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Hamid Toshani has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Alireza Ranjineh Khojasteh
Department of Electrical and Computer Engineering, Islamic Azad University Tehran North Branch, Tehran, Iran
1 shared publication - Ehsan Abdi
Wind Technologies Ltd., Cambridge, U.K.
1 shared publication - Richard McMahon
Warwick Manufacturing Group, University of Warwick, Coventry, U.K.
1 shared publication - Salman Abdi
School of Engineering, University of East Anglia, Norwich, U.K.
1 shared publication
Latest Publications
- 4 June 2021
- Published by Springer Nature in International Journal of Dynamics and Control
- Vol. 10 (2) , 447-461
Design nonlinear feedback strategy using H2/H∞ control and neural network based estimator for variable speed wind turbine
- 4 June 2021
- Published by Springer Nature in International Journal of Dynamics and Control
- Vol. 10 (2) , 447-461
Design nonlinear feedback strategy using H2/H∞ control and neural network based estimator for variable speed wind turbine
- 15 April 2020
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Energy Conversion
- Vol. PP (08858969) , 1
Vibration Analysis of Brushless Doubly Fed Machines in the Presence of Rotor Eccentricity
In this work, an analytical study has been performed on the Brushless Doubly Fed Machine's (BDFM) vibration due to the interaction of its fundamental magnetic fields, exerting bending forces in the back iron. The effects of rotor eccentricity on exacerbating the machine's vibration have been considered by assessing the stator back iron displacement function in the presence of rotor eccentricity. Finite element analysis is carried out for a 250 kW BDFM built in frame size D400 to validate the analytical methods. The stator back iron displacement is determined for an ideally-constructed machine as well as when the rotor has static and dynamic eccentricity. In addition, the prototype BDFM was tested at different operating conditions in order to examine its noise and vibration levels. A set of measurements was conducted to assess the main vibration component frequencies developed by the machine at different rotor speeds. It is shown that the main vibration components are created by bending set-up in the back iron, rotor eccentricity, and the components with time and space harmonic natures. The results obtained from finite element analysis and experimentally agree with the analytical assessment of BDFM vibration.
- 15 April 2020
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Energy Conversion
- Vol. PP (08858969) , 1
Vibration Analysis of Brushless Doubly Fed Machines in the Presence of Rotor Eccentricity
In this work, an analytical study has been performed on the Brushless Doubly Fed Machine's (BDFM) vibration due to the interaction of its fundamental magnetic fields, exerting bending forces in the back iron. The effects of rotor eccentricity on exacerbating the machine's vibration have been considered by assessing the stator back iron displacement function in the presence of rotor eccentricity. Finite element analysis is carried out for a 250 kW BDFM built in frame size D400 to validate the analytical methods. The stator back iron displacement is determined for an ideally-constructed machine as well as when the rotor has static and dynamic eccentricity. In addition, the prototype BDFM was tested at different operating conditions in order to examine its noise and vibration levels. A set of measurements was conducted to assess the main vibration component frequencies developed by the machine at different rotor speeds. It is shown that the main vibration components are created by bending set-up in the back iron, rotor eccentricity, and the components with time and space harmonic natures. The results obtained from finite element analysis and experimentally agree with the analytical assessment of BDFM vibration.