Comparative analysis of 1DOF vs. 2DOF speed increasers for counter-rotating wind turbines

8th International Conference on Advanced Concepts in Mechanical Engineering

Saulescu, R.^1 ; Neagoe, M.^1 ; Velicu, R.^1

Product Design, Mecatronics and Environment Department, Transilvania University of Brasov, Brasov, Romania^1

关键词: Comparative analysis;    Comparative studies;    Counter rotating;    Energetic behavior;    Higher efficiency;    Mechanical response;    Static performance;    Wind systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/5/052007/pdf
DOI  :  10.1088/1757-899X/444/5/052007

来源: IOP

【 摘 要 】

The paper presents a comparative study on the cinematic and static performance of a new type of planetary speed increaser for wind turbines. In this respect, the analytical modeling of the mechanical response for a counter-rotation wind system consisting of two identical counter-rotating wind turbines, an electric generator with fixed stator and a two-inputs one-output planetary speed increaser which can operate in two distinct situations: as a differential (2DOF) increaser (summing the input speeds) or as a monomobile (1DOF) increaser (summing the input moments) is obtained in the first part. For a numerical case study, the mechanical response of the wind system is simulated in the two stated functional situations, considering 1DOF vs. 2DOF speed increasers. The obtained results show a better energetic behavior of the 1DOF wind system as a result of a higher efficiency, but with a higher degree of load unevenness of the two wind turbines.