Inerter-based passive structural control for load mitigation of wind turbines

摘要

This paper investigates inerter-based passive structural control problem for wind turbines to reduce the wind-induced loads, where the inerter-based dynamic vibration absorber (IDVA) is employed. The IDVA in this paper is composed of a passive spring and a parallel-connected passive network, where all networks with first-order and second-order admittances are considered and the specific structure for the passive network is obtained by using network synthesis methods. The wind turbine system is modelled as a discrete parameter multi-degree-of-freedom system, where an interaction between the tower and blades is included. Numerical simulations are conducted to show the effectiveness and the performance benefits of the proposed inerter-based passive structural control method.