Picture of athlete cycling

Open Access research with a real impact on health...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Estimation of the power electronic converter lifetime in fully rated converter wind turbine for onshore and offshore wind farms

Givaki, K and Parker, M and Jamieson, P (2014) Estimation of the power electronic converter lifetime in fully rated converter wind turbine for onshore and offshore wind farms. In: 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014). IET, pp. 1-6. ISBN 978-1-84919-815-8

[img]
Preview
Text (Givaki-etal-PEMD-2014-Estimation-of-the-power-electronic-converter-lifetime-in-fully)
Givaki_etal_PEMD_2014_Estimation_of_the_power_electronic_converter_lifetime_in_fully.pdf - Accepted Author Manuscript

Download (574kB) | Preview

Abstract

A comparison has been made of the converter lifetime for a 3MW fully rated converter horizontal axis wind turbine located onshore and offshore. Simulated torque and speed of the turbine shaft were used to calculate voltage and current time series, that was used to calculate the junction temperatures of the diode and IGBT in the generator-side converter by a thermal-electrical model. A rainflow counting algorithm was applied to the junction temperature in combination with an empirical model of the lifetime estimation, to calculate the lifetime of the power electronic modules in the turbine. The number of parallel modules for each location to achieve 20 years life time has also been found. Simulations show the lifetime consumption rate of the diode and IGBT is decreased exponentially by increasing number of parallel modules, lowering the average temperature. The offshore wind turbine has a higher lifetime consumption rate, requiring a slightly higher converter rating to achieve a 20-year lifetime, but this difference is small, and both turbines will use the same number of modules.