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Lessening gap loss concentration problems in nanocrystalline cores by alloy gap replacement (2022)
Journal Article
Guo, X., Ran, L., & Tavner, P. (2022). Lessening gap loss concentration problems in nanocrystalline cores by alloy gap replacement. Journal of Engineering, 2022(4), 411-421. https://doi.org/10.1049/tje2.12127

A simple method is proposed here to improve the gap loss concentration problem of a nanocrystalline core in an LCL filter inductor for high switching frequency converters using SiC devices. This alloy-gapped inductor design aims to reach two primary... Read More about Lessening gap loss concentration problems in nanocrystalline cores by alloy gap replacement.

Integrated condition-based maintenance modelling and optimisation for offshore wind farms (2021)
Journal Article
Dao, C. D., Kazemtabrizi, B., Crabtree, C. J., & Tavner, P. J. (2021). Integrated condition-based maintenance modelling and optimisation for offshore wind farms. Wind Energy, 24(11), 1180-1198. https://doi.org/10.1002/we.2625

Maintenance is essential in keeping wind energy assets operating efficiently. With the development of advanced condition monitoring, diagnostics and prognostics, condition‐based maintenance has attracted much attention in the offshore wind industry i... Read More about Integrated condition-based maintenance modelling and optimisation for offshore wind farms.

Electrical & Mechanical Diagnostic Indicators of Wind Turbine Induction Generator Rotor Faults (2018)
Journal Article
Zappalá, D., Sarma, N., Djurović, S., Crabtree, C., Mohammad, A., & Tavner, P. (2019). Electrical & Mechanical Diagnostic Indicators of Wind Turbine Induction Generator Rotor Faults. Renewable Energy, 131, 14-24. https://doi.org/10.1016/j.renene.2018.06.098

In MW-sized wind turbines, the most widely-used generator is the wound rotor induction machine, with a partially-rated voltage source converter connected to the rotor. This generator is a significant cause of wind turbine fault modes. In this paper,... Read More about Electrical & Mechanical Diagnostic Indicators of Wind Turbine Induction Generator Rotor Faults.

Side-band algorithm for automatic wind turbine gearbox fault detection and diagnosis (2014)
Journal Article
Zappalá, D., Tavner, P., Crabtree, C., & Sheng, S. (2014). Side-band algorithm for automatic wind turbine gearbox fault detection and diagnosis. IET Renewable Power Generation, 8(4), 380-389. https://doi.org/10.1049/iet-rpg.2013.0177

Improving the availability of wind turbines is critical for minimising the cost of wind energy, especially offshore. The development of reliable and cost-effective gearbox condition monitoring systems (CMSs) is of concern to the wind industry, becaus... Read More about Side-band algorithm for automatic wind turbine gearbox fault detection and diagnosis.

Analysis and Enhancement of Low Voltage Ride-through Capability of Brushless Doubly Fed Induction Generator (2013)
Journal Article
Tohidi, S., Oraee, H., Zolghadri, M., Shao, S., & Tavner, P. (2013). Analysis and Enhancement of Low Voltage Ride-through Capability of Brushless Doubly Fed Induction Generator. IEEE Transactions on Industrial Electronics, 60(3), 1146-1155. https://doi.org/10.1109/tie.2012.2190955

This paper discusses the dynamic behavior of the brushless doubly fed induction generator during the grid faults which lead to a decrease in the generator's terminal voltage. The variation of the fluxes, back EMFs, and currents are analyzed during an... Read More about Analysis and Enhancement of Low Voltage Ride-through Capability of Brushless Doubly Fed Induction Generator.

Wind turbine SCADA alarm analysis for improving reliability (2012)
Journal Article
Qiu, Y. N., Feng, Y. H., Tavner, P. J., Richardson, P., Erdos, G., & Chen, B. (2012). Wind turbine SCADA alarm analysis for improving reliability. Wind Energy, 15(8), 951-966. https://doi.org/10.1002/we.513

Previous research for detecting incipient wind turbine failures, using condition monitoring algorithms, concentrated on wind turbine Supervisory Control and Data Acquisition (SCADA) signals, such as power output, wind speed and bearing temperatures,... Read More about Wind turbine SCADA alarm analysis for improving reliability.

Wind turbine condition monitoring : technical and commercial challenges (2012)
Journal Article
Yang, W., Tavner, P. J., Crabtree, C. J., Feng, Y., & Qiu, Y. (2014). Wind turbine condition monitoring : technical and commercial challenges. Wind Energy, 17(5), 673-693. https://doi.org/10.1002/we.1508

Deployment of larger scale wind turbine systems, particularly offshore, requires more organized operation and maintenance strategies to ensure systems are safe, profitable and cost-effective. Among existing maintenance strategies, reliability centred... Read More about Wind turbine condition monitoring : technical and commercial challenges.

Monitoring wind turbine gearboxes (2012)
Journal Article
Feng, Y., Qiu, Y., Crabtree, C., Long, H., & Tavner, P. (2012). Monitoring wind turbine gearboxes. Wind Energy, 16(5), 728-740. https://doi.org/10.1002/we.1521

Concerns amongst wind turbine (WT) operators about gearbox reliability arise from complex repair procedures, high replacement costs and long downtimes leading to revenue losses. Therefore, reliable monitoring for the detection, diagnosis and predicti... Read More about Monitoring wind turbine gearboxes.

Review of recent offshore wind power developments in China. (2012)
Journal Article
Liu, T., Tavner, P., Feng, Y., & Qiu, Y. (2012). Review of recent offshore wind power developments in China. Wind Energy, 16(5), 786-803. https://doi.org/10.1002/we.1523

Rapid wind power development in China has attracted worldwide attention. The huge market potential and fast development of wind turbine manufacturing capacity are making China a world leader in wind power development. In 2010, with the newly installe... Read More about Review of recent offshore wind power developments in China..

Study of weather and location effects on wind turbine failure rates. (2012)
Journal Article
Tavner, P., Greenwood, D., Whittle, M., Gindele, R., Faulstich, S., & Hahn, B. (2012). Study of weather and location effects on wind turbine failure rates. Wind Energy, 16(2), 175-187. https://doi.org/10.1002/we.538

Understanding the availability of wind turbines (WT) is vital to maximize WT energy production and minimize the capital payback period. Previous work on this subject concentrated on reliability and the location of WT failure modes rather than root ca... Read More about Study of weather and location effects on wind turbine failure rates..

Condition Monitoring Power Module Solder Fatigue Using Inverter Harmonic Identification (2012)
Journal Article
Xiang, D., Ran, L., Tavner, P., Yang, S., Bryant, A., & Mawby, P. (2012). Condition Monitoring Power Module Solder Fatigue Using Inverter Harmonic Identification. IEEE Transactions on Power Electronics, 27(1), 235-247. https://doi.org/10.1109/tpel.2011.2160988

Condition monitoring power semiconductor devices can inform converter maintenance and reduce damage. This paper presents a method to monitor solder fatigue in a voltage source inverter insulated gate bipolar transistor power module by detecting the c... Read More about Condition Monitoring Power Module Solder Fatigue Using Inverter Harmonic Identification.

An industry-based survey of reliability in power electronic converters (2011)
Journal Article
Yang, S., Bryant, A., Mawby, P., Xiang, D., Ran, L., & Tavner, P. (2011). An industry-based survey of reliability in power electronic converters. IEEE Transactions on Industry Applications, 47(3), 1441-1451. https://doi.org/10.1109/tia.2011.2124436

A questionnaire survey was carried out to determine the industrial requirements and expectations of reliability in power electronic converters. The survey was subjective and conducted with a number of high-profile semiconductor manufacturers, integra... Read More about An industry-based survey of reliability in power electronic converters.

Wind turbine downtime and its importance for offshore deployment (2011)
Journal Article
Faulstich, S., Hahn, B., & Tavner, P. (2011). Wind turbine downtime and its importance for offshore deployment. Wind Energy, 14(3), 327-337. https://doi.org/10.1002/we.421

While the performance and the efficiency of wind turbines and their energy yields have been improved with time, their reliability still needs improvement, particularly when considering their deployment offshore. IWES has been gathering operational ex... Read More about Wind turbine downtime and its importance for offshore deployment.

Early experiences with UK Round 1 offshore wind farms (2010)
Journal Article
Feng, Y., Tavner, P., & Long, H. (2010). Early experiences with UK Round 1 offshore wind farms. Energy, 163(4), 167-181. https://doi.org/10.1680/ener.2010.163.4.167

The UK government plans that offshore wind power should play a major part in meeting the UK’s renewable energy and carbon emission targets by 2020. The pioneer UK round 1 offshore wind farm projects, based on sites let in 2001, were supported by the... Read More about Early experiences with UK Round 1 offshore wind farms.

Condition Monitoring for Device Reliability in Power Electronic Converters: A Review (2010)
Journal Article
Yang, S., Xiang, D., Bryant, A., Mawby, P., Ran, L., & Tavner, P. (2010). Condition Monitoring for Device Reliability in Power Electronic Converters: A Review. IEEE Transactions on Power Electronics, 25(11), 2734-2752. https://doi.org/10.1109/tpel.2010.2049377

Condition monitoring (CM) has already been proven to be a cost effective means of enhancing reliability and improving customer service in power equipment, such as transformers and rotating electrical machinery. CM for power semiconductor devices in p... Read More about Condition Monitoring for Device Reliability in Power Electronic Converters: A Review.

Condition monitoring of the power output of wind turbine generators using wavelets (2010)
Journal Article
Watson, S., Xiang, J., Yang, W., Tavner, P., & Crabtree, C. (2010). Condition monitoring of the power output of wind turbine generators using wavelets. IEEE Transactions on Energy Conversion, 25(3), 715-721. https://doi.org/10.1109/tec.2010.2040083

With an increasing number of wind turbines being erected offshore, there is a need for cost-effective, predictive, and proactive maintenance. A large fraction of wind turbine downtime is due to bearing failures, particularly in the generator and gear... Read More about Condition monitoring of the power output of wind turbine generators using wavelets.