Evaluation of different inertial control methods for variable‐speed wind turbines simulated by fatigue, aerodynamic, structures and turbulence (FAST). Issue 12 (17th August 2017)

• Record Type: Journal Article
• Authors: Wang, Xiao; Gao, Wenzhong; Scholbrock, Andrew; Muljadi, Eduard; Gevorgian, Vahan; Wang, Jianhui; Yan, Weihang; Zhang, Huaguang
• Is Part Of: IET renewable power generation. Volume 11:Issue 12(2017)
• Page Start: 1534
• Page End: 1544
• Publication Date: 2017-08-17
• Subjects: wind turbines -- angular velocity control -- power generation control -- power convertors; inertial control method -- variable‐speed wind turbines -- degraded power system inertia -- primary frequency response -- large‐scale wind power integration -- research turbine -- controls advanced RT -- CART3 -- turbine speed‐power plane -- WSCC 9‐bus -- IEEE 14‐bus power grid -- fatigue -- aerodynamic -- structures -- turbulence -- kinetic energy -- shaped active power reference; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2017.0123
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : To mitigate the degraded power system inertia and undesirable primary frequency response caused by large‐scale wind power integration, the frequency support capabilities of variable‐speed wind turbines is studied in this work. This is made possible by controlled inertial response, which is demonstrated on a research turbine – controls advanced research turbine, 3‐bladed (CART3). Two distinct inertial control (IC) methods are analysed in terms of their impacts on the grids and the response of the turbine itself. The released kinetic energy in the IC methods are determined by the frequency measurement or shaped active power reference in the turbine speed–power plane. The wind turbine model is based on the high‐fidelity turbine simulator fatigue, aerodynamic, structures and turbulence, which constitutes the aggregated wind power plant model with the simplified power converter model. The IC methods are implemented over the baseline CART3 controller, evaluated in the modified 9‐bus and 14‐bus testing power grids considering different wind speeds and different wind power penetration levels. The simulation results provide various insights on designing such kinds of ICs. The authors calculate the short‐term dynamic equivalent loads and give a discussion about the turbine structural loadings related to the inertial response.