Open AccessStudy on speed and torque control of a novel hydromechanical hybrid transmission system in wind turbine
Author(s) -
Chen Wenting,
Lin Yonggang,
Li Wei,
Liu Hongwei,
Tu Le,
Meng Hao
Publication year - 2019
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
eISSN - 1752-1424
pISSN - 1752-1416
DOI - 10.1049/iet-rpg.2018.6105
Subject(s) - wind power , turbine , torque , wind speed , automotive engineering , transmission (telecommunications) , transmission system , engineering , variable speed wind turbine , matlab , control system , control theory (sociology) , computer science , control (management) , mechanical engineering , electrical engineering , permanent magnet synchronous generator , physics , artificial intelligence , meteorology , magnet , thermodynamics , operating system
A wind turbine is the most typical machine used to capture energy from the wind. The system design goal of a wind turbine is to obtain as much energy as possible from the wind while transmitting as much of that energy to the grid as possible, all under the highest possible level of stability. Currently, many inherent weaknesses result in a high failure rate in common commercial wind turbines with gear drive systems. To improve the performance, in this study, a typical 1.5 MW gear transmission was redesigned into a novel hydromechanical transmission system (HMTS). Parameters related to the HMTS efficiency were analysed to ensure that the efficiency was relatively high. The variable speed ratio (VSR) and torque triple absorption (TTA) principle were thoroughly deduced. Moreover, a MATLAB/Simulink‐ AMESim cosimulation model was proposed, and a 30 kW proportional prototype was established. Both simulation and experimental results show that the structural design and proposed control strategies meet the design goals, including a relatively high transmission efficiency around the rated wind speed, speed control below the rated wind speed, and torque control above the rated wind speed. These achievements should guarantee the future application of the novel transmission system in wind turbines.