[HTML][HTML] Comparative energy performance analysis of four wind turbines with counter-rotating rotors in steady-state regime

M Neagoe, R Saulescu - Energy Reports, 2022 - Elsevier
In the worldwide effort to decarbonize the electricity generation, increasing the energy
performance of renewable energy conversion systems is a continuing global concern and …

[HTML][HTML] Design and simulation of a 1 DOF planetary speed increaser for counter-rotating wind turbines with counter-rotating electric generators

M Neagoe, R Saulescu, C Jaliu - Energies, 2019 - mdpi.com
The improvement of wind turbine performance poses a constant challenge to researchers
and designers in the field. As a result, the literature presents new concepts of wind turbines …

[HTML][HTML] A comparative performance analysis of counter-rotating dual-rotor wind turbines with speed-adding increasers

R Saulescu, M Neagoe, C Jaliu, O Munteanu - Energies, 2021 - mdpi.com
Increasing the efficiency of wind power conversion into electricity poses major challenges to
researchers and developers of wind turbines, who are striving for new solutions that can …

[HTML][HTML] Comparative analysis of torque-adding wind energy conversion systems with a counter-rotating vs. conventional electric generator

R Saulescu, C Jaliu, M Neagoe, D Ciobanu… - Frontiers in Energy …, 2023 - frontiersin.org
The paper presents a comparative analysis on the steady-state behavior of two counter-
rotating wind turbines with same components, where the generator can operate as a counter …

[HTML][HTML] A Comparative Performance Analysis of Four Wind Turbines with Counter-Rotating Electric Generators

M Neagoe, R Saulescu, C Jaliu, O Munteanu… - Applied Sciences, 2022 - mdpi.com
Wind energy conversion systems play a major role in the transition to carbon-neutral power
systems, and obviously, a special attention is paid in identifying the most effective solutions …

[HTML][HTML] Conceptual synthesis of speed increasers for wind turbine conversion systems

R Saulescu, M Neagoe, C Jaliu - Energies, 2018 - mdpi.com
Most wind turbines (WT) are of the single-rotor type, which means they are simple, reliable
and durable, but unlikely to convert more than 40% of the available wind energy. Different …

[HTML][HTML] A generalized approach to the steady-state efficiency analysis of torque-adding transmissions used in renewable energy systems

M Neagoe, R Saulescu, C Jaliu, PA Simionescu - Energies, 2020 - mdpi.com
The paper presents a general approach to the steady-state efficiency analysis of one degree
of freedom (1-DOF) speed increasers with one or two inputs, and one or two outputs …

Novel Speed increaser used in counter-rotating wind turbines

M Neagoe, R Saulescu, C Jaliu, N Cretescu - New Advances in …, 2017 - Springer
The speed increasers are typical components of a large diversity of renewable energy
systems (RES), like wind turbines or hydropower plants, used to harmonize the low input …

Performance analysis of a novel planetary speed increaser used in single-rotor wind turbines with counter-rotating electric generator

R Saulescu, M Neagoe, O Munteanu… - IOP Conference Series …, 2016 - iopscience.iop.org
The paper presents a study on the kinematic and static performances of a new type of 1DOF
(Degree Of Freedom) planetary speed increaser to be implemented in wind turbines, a …

Comparative analysis of two wind turbines with counter-rotating vs. fixed-stator electric generator

R Saulescu, M Neagoe… - IOP Conference Series …, 2020 - iopscience.iop.org
The paper presents a comparative study of two wind turbines with counter-rotating versus
classical electric generator (with fixed stator). The wind turbines include a speed increaser …