Impact of Shaft Stiffness on Inertial Response of Fixed Speed Wind Turbines

作     者：Francisco GONZLEZ-LONGATT 

作者机构：Faculty of Engineering and ComputingCoventry UniversityCoventry CV1 5FBUnited Kingdom 

出 版 物：《电力系统自动化》 (Automation of Electric Power Systems)

年 卷 期：2012年第36卷第8期

页      面：191-197页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：Engineering and Physical Sciences Research Council  EPSRC  (EP/G055211/1) 

主　　题：风力发电机 刚度模型 惯性 风力涡轮机 频率稳定性 轴 定速 传动系统 

摘      要：Future power system faces several challenges,one of them is the high penetration level of intermittent wind power generation,providing small or even no inertial response and being not contributing to the frequency *** effect of shaft stiffness on inertial response of fixed speed wind turbines is *** different drive-train models based on the multi-body system are *** small-signal analysis demonstrates no significant differences between models in terms of electro-mechanical eigen-values for increasing shaft *** natural resonance frequency of drive-train torsion modes shows slightly different values between damped and undamped models,but no significant differences are found in the number-mass ***-domain simulations show the changes in the active power contribution of a wind farm based on a fixed speed wind turbine during the system frequency *** changes in the kinetic energy during the dynamic process are calculated and their contribution to the inertia constant is small and *** largest contribution of the kinetic energy is provided at the beginning of the system frequency disturbance to reduce the rate of the frequency change,it is positive for the frequency stability.