Date of Award

1-1-2013

Document Type

Dissertation

Degree Name

Ph.D.

Department

Electrical Engineering

First Advisor

Wenzhong D. Gao

Keywords

Power system, Wind turbine

Abstract

Wind is one of the most popular renewable energy sources and it has the potential to become the biggest energy source in future. Since the wind does not always blow constantly, the output wind power is not constant which may make some problem for the power grid. According to the grid code which is set by independent system

operator, ISO, wind turbine generator systems need to follow some standards such as the predetermined acceptable power fluctuations.

In order to smooth the output powers, the energy storage system and some power electronics modules are employed. The utilized power electronics modules in the wind turbine system can pursue many different goals, such as maintaining the voltage stability, frequency stability, providing the available and predetermined output active and reactive power. On the other side, the energy storage system can help achieving some of these goals but its main job is to store the extra energy when not needed and release the stored energy when needed. The energy storage system can be designed in different sizes, material and also combination of different energy storage systems (hybrid designs). Combination of power electronics devises and also energy storage system helps the wind turbine systems to smooth the output power according to the provided standards. In addition prediction of wind speed may improve the performance of wind turbine generator systems.

In this research study all these three topics are studied and the obtained results are written in 10 papers which 7 of them are published and three of them are under process.

Provenance

Recieved from ProQuest

Rights holder

Hamed Babazadehrokni

File size

103 p.

File format

application/pdf

Language

en

Discipline

Electrical engineering

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