Abstract
Abstract. The power generation and loading dynamic responses of a 2.2 m diameter horizontal axis wind turbine (HAWT) under some of the IEC 61400-1 transient extreme operational conditions, more specifically extreme wind shears (EWSs) and extreme operational gust (EOG), that were reproduced at the WindEEE Dome at Western University were investigated. The global forces were measured by a multi-axis force balance at the HAWT tower base. The unsteady horizontal shear induced a significant yaw moment on the rotor with a dynamic similar to that of the extreme event without affecting the power generation. The EOG severely affected all the performance parameters of the turbine.
Highlights
In the past 2 decades, wind energy has grown to become one of the primary sources of energy being installed worldwide in an effort to reduce greenhouse gas emissions
It has been reported that the effect of the extreme events can get transferred to the grid with even amplification in magnitudes; the power output of the whole wind farm can change by 50 % in just 2 min (Milan et al, 2013)
The power generation and loads on a scaled horizontal axis wind turbine (HAWT) are being tested under representative deterministic gust design conditions as per International Electrotechnical Commission (IEC) 2005. This is an extension to the previous study (Shirzadeh et al, 2020) that incorporated the developments of the corresponding scaled extreme operational gust (EOG) and extreme wind shears (EWSs) and included the extreme vertical and horizontal shears (EVSs and EHSs), in the WindEEE Dome
Summary
In the past 2 decades, wind energy has grown to become one of the primary sources of energy being installed worldwide in an effort to reduce greenhouse gas emissions. The power generation and loads on a scaled HAWT are being tested under representative deterministic gust design conditions as per IEC 2005 This is an extension to the previous study (Shirzadeh et al, 2020) that incorporated the developments of the corresponding scaled extreme operational gust (EOG) and extreme wind shears (EWSs) and included the extreme vertical and horizontal shears (EVSs and EHSs), in the WindEEE Dome. (2019) developed an algorithm for a PI controller of the pitch angles of a scaled wind turbine in the wind gust conditions generated by an active grid Using the algorithm, they were able to reduce over-speeding of the rotor and the blades’ bending moments.
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