Dynamic Load Sharing Behavior for the Pitch Drive in MW Wind Turbines
نویسندگان
چکیده
For a wind energy system, main speed-increasing gearboxes, pitch drives and yaw are composed of multistage planetary gear system. However, inevitable errors in the manufacturing assembling gears lead to uneven load distribution system; thus, its service life reliability decrease greatly, which would eventually affect normal operation whole power In this study, dynamic sharing model drive is established with lumped-parameter method. Given assembly central floating gear, equations for each component, stiffness matrix damping matrix, coefficient displacement sun obtained according meshing force load. Furthermore, external internal 2 MW turbine three-stage achieved. Then, other also obtained. Moreover, influence both stiffness, eccentric error tooth frequency all components on stages investigated. Lastly, theoretical compared experiment results under 50%, 100% 150% rated torque test rig; correctness verified by results.
منابع مشابه
Direct - Drive Wind Turbines
The objective of this paper is to identify suitable generator concepts for direct-drive wind turbines by reviewing directdrive and geared generator systems. Usually, in literature, comparison of different generator systems is discussed with the criteria based on the energy yield, cost, and weight. Because direct-drive permanent-magnet machines are more superior in terms of the energy yield, rel...
متن کاملLoad Reduction Pitch Control for Large Scale Wind Turbines based on Sliding Mode
With the wind turbines being produced toward to large scale and light weight, the flexibility of blade, drive mechanism and tower increase apparently. Loads suffered by wind turbines during operation become increasingly intricate. Some control approaches could be used to cut down these loads in orde to expand life cycle of generating sets. Aiming at the full load operation zone above rated wind...
متن کاملFault Behavior of Wind Turbines
Synchronous generators have always been the dominant generation type in the grid. This fact affected both planning and operation of power systems. With the fast increase of wind power share in the grid in the last decade, the situation is changing. In some countries wind power represents already a consistent amount of the total generation. Wind turbines can be classified as non-synchronous gene...
متن کاملTwo LQRI based Blade Pitch Controls for Wind Turbines
As the wind turbine size has been increasing and their mechanical components are built lighter, the reduction of the structural loads becomes a very important task of wind turbine control in addition to maximum wind power capture. In this paper, we present a separate set of collective and individual pitch control algorithms. Both pitch control algorithms use the LQR control technique with integ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Processes
سال: 2023
ISSN: ['2227-9717']
DOI: https://doi.org/10.3390/pr11020544