Lifetime Estimation of Semiconducting Components in 8MW Wind Turbine Generators with ”Power Boost” Functionality

Pedersen, J.K.; Juncker, Kasper; Randewijk, Peter Jan

doi:10.1109/upec49904.2020.9209801

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…To address controller requirements, advanced control methods have been developed to minimise blade loads (Bossanyi, 2003;Leithead and Stock, 2016), dampen tower vibrations (Leithead and Dominguez, 2006;Chatzopoulos, 2011;Leithead and Stock, 2016), and increase power capture in certain conditions (Pedersen et al, 2020). Whilst some of these goals may be complementary, often they are competing demands.…”

Section: Wind Turbine Controlmentioning

confidence: 99%

Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads

et al. 2022

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Abstract. This work considers the characteristics and drivers of the loads experienced by wind turbine main bearings. Simplified load response models of two different hub and main-bearing configurations are presented, representative of both inverting direct-drive and four-point-mounted geared drivetrains. The influences of deterministic wind field characteristics, such as wind speed, shear, yaw offset, and veer, on the bearing load patterns are then investigated for similarity scaled 5, 7.5, and 10 MW reference wind turbine models. Main-bearing load response in cases of deterministic gusts and extreme changes in wind direction are also considered for the 5 MW model. Perhaps surprisingly, veer is identified as an important driver of main-bearing load fluctuations. Upscaling results indicate that similar behaviour holds as turbines become larger, but with mean loads and load fluctuation levels increasing at least cubically with the turbine rotor radius. Strong links between turbine control and main-bearing load response are also observed.

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Section: Wind Turbine Controlmentioning

confidence: 99%

Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads

et al. 2022

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“…A well designed controller 3 will follow the desired operational strategy 4 , have a bandwidth of at least 1 rad/s because the main turbulent structures in the wind are contained within this frequency range (Burton et al, 2001), minimise loads on structural components, account for aerodynamic non-linearities, and minimise actuator activity. To address controller requirements, advanced control methods have been developed to minimise blade loads (Bossanyi, 2003;Leithead and Stock, 2016), dampen tower vibrations (Leithead and Dominguez, 2006;Chatzopoulos, 2011;Leithead and Stock, 2016), and increase power capture in certain conditions (Pedersen et al, 2020). Whilst some of these goals may be complementary, often they are competing demands.…”

Section: Wind Turbine Controlmentioning

confidence: 99%

Impacts of wind field characteristics and non-steady deterministic wind events on time varying main-bearing loads

Hart¹,

Stock²,

Elderfield³

et al. 2022

Preprint

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Abstract. This work considers the characteristics and drivers of the loads experienced by wind turbine main-bearings. Simplified load response models of two different hub and main-bearing configurations are presented, representative of both inverting direct-drive and four-point mounted geared drivetrains. The influences of deterministic wind field characteristics, such as wind speed, shear, yaw offset and veer, on the bearing load patterns are then investigated for similarity scaled 5, 7.5 and 10 MW reference wind turbine models. Main-bearing load response in cases of deterministic gusts and extreme changes in wind direction are also considered for the 5 MW model. Perhaps surprisingly, veer is identified as an important driver of main-bearing load fluctuations. Upscaling results indicate that similar behaviour holds as turbines become larger, but with mean loads and load fluctuation levels increasing at least cubically with the turbine rotor radius. Strong links between turbine control and main-bearing load response are also observed.

show abstract

Lifetime Estimation of Semiconducting Components in 8MW Wind Turbine Generators with ”Power Boost” Functionality

Cited by 2 publications

References 4 publications

Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads

Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads

Impacts of wind field characteristics and non-steady deterministic wind events on time varying main-bearing loads

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