Analysis of Active Control Methods to Improve Converter Reliability in Wind Turbines

Title

Analysis of Active Control Methods to Improve Converter Reliability in Wind Turbines

 Author

Yin, Shihang (TU Delft Electrical Engineering, Mathematics and Computer Science)

Contributor

Polinder, Henk (mentor)
Dong, Jianning (mentor)
Shipurkar, Udai (mentor)
Qin, Zian (graduation committee)

Degree granting institution

Delft University of Technology

 Programme

Electrical Engineering

 Date

2018-08-16

 Abstract

Converters are the essential devices in the energy transformation process from the wind generators to the grid. Power electronic semiconductors have a high share of failures in the power electronic converters. Therefore, the reliability based on lifetime of power semiconductor generates more and more attention. This thesis presents a comparison of different active control methods to control the lifetime of power semiconductors in wind turbines. This investigation is implemented through simulations on a 10 MW direct drive permanent magnet wind generator with three-level neutral point clamped converters. The study shows that both switching frequency control and reactive current control can improve semiconductor lifetime to certain extents. As for which control method is more effective depends on the surrounding wind environment.

 To reference this document use:

http://resolver.tudelft.nl/uuid:a6e75680-1119-4b0e-8b1f-505ec5050bad

 Part of collection

Student theses

 Document type

master thesis

 Rights

© 2018 Shihang Yin
Files
PDF shihangyin_finalupload.pdf 6 MB
Close viewer