Ion Neagoe
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Ion Neagoe has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Alexandru Catalin Filip
Department of Manufacturing Engineering, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania
1 shared publication - Codruta Jaliu
Transilvania University of Brasov
1 shared publication - Mircea Neagoe
Renewable Energy Systems and Recycling R&D Centre, Faculty of Product Design and Environment, Transilvania University of Brasov, 500036 Brasov, Romania, Romania
1 shared publication - Radu Saulescu
Design of Mechanical Elements and Systems R&D Centre, Faculty of Product Design and Environment, Transilvania University of Brasov, 500036 Brasov, Romania
1 shared publication
Latest Publications
- Open Access
- 23 September 2021
- Published by MDPI AG in Applied Sciences
- Vol. 11 (19) , 8834
Dynamic Analysis of a Single-Rotor Wind Turbine with Counter-Rotating Electric Generator under Variable Wind Speed
This paper presents a theoretical study of the dynamic behaviour of a wind turbine consisting of a wind rotor, a speed increaser with fixed axes, and a counter-rotating electric generator, operating in variable wind conditions. In the first part, the dynamic analytical model of the wind turbine mechanical system is elaborated based on the dynamic equations associated with the component rigid bodies and the linear mechanical characteristics associated with the direct current (DC) generator and wind rotor. The paper proposes a method for identifying the coefficients of the wind rotor mechanical characteristics depending on the wind speed. The numerical simulations performed in Simulink-MATLAB by MathWorks on a case study of a 10 kW wind turbine highlight the variation with the time of the kinematic parameters (angular speeds and accelerations), torques and powers for wind system shafts, as well as the mechanical efficiency, both in transient and steady-state regimes, considering variable wind speed. The analytical and numerical results are helpful for researchers, designers, developers, and practitioners of wind turbines aiming to optimise their construction and functionality through virtual prototyping.
- 23 September 2021
- Published by MDPI AG in Applied Sciences
- Vol. 11 (19) , 8834
Open AccessDynamic Analysis of a Single-Rotor Wind Turbine with Counter-Rotating Electric Generator under Variable Wind Speed
This paper presents a theoretical study of the dynamic behaviour of a wind turbine consisting of a wind rotor, a speed increaser with fixed axes, and a counter-rotating electric generator, operating in variable wind conditions. In the first part, the dynamic analytical model of the wind turbine mechanical system is elaborated based on the dynamic equations associated with the component rigid bodies and the linear mechanical characteristics associated with the direct current (DC) generator and wind rotor. The paper proposes a method for identifying the coefficients of the wind rotor mechanical characteristics depending on the wind speed. The numerical simulations performed in Simulink-MATLAB by MathWorks on a case study of a 10 kW wind turbine highlight the variation with the time of the kinematic parameters (angular speeds and accelerations), torques and powers for wind system shafts, as well as the mechanical efficiency, both in transient and steady-state regimes, considering variable wind speed. The analytical and numerical results are helpful for researchers, designers, developers, and practitioners of wind turbines aiming to optimise their construction and functionality through virtual prototyping.