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Alexander Novikov

PhD

Wind turbine and wind power plant protection in a converter-based power system

Host organisation 

Technical University of Denmark

Company

Siemens Gamesa Renewable Energy

Project Description

Massive integration of wind energy to a transmission grid can have an impact on the fault current level in the system. This is mainly because modern wind turbines are interfaced to the grid via power electronic converters. Converters do not have a meaningful short-term overcurrent rating since over-currents in semiconductors lead to damaging temperature rises very quickly because of the very low thermal mass. The converter controls typically limit the fault current contribution to a value close to the normal rating of the converter. Consequently, the existing protection relay system may not be suitable to meet the expected accuracy and reliability. This means that protection philosophy and implementation in converter-based systems will need to be significantly reconsidered from what it is today.

Supervisors

Nicolaos Cutululis - DTU

Guangya Yang - DTU

Ranjan Sharma - SGRE

Frank Martin - SGRE

Background

In 2018 I received MSc degree in Electrical Engineering from Delft University of Technology in Netherlands. Prior to that, I obtained BSc degree in Electrical Power Engineering from Ivanovo State Power Engineering University in Russia in 2015. For two years, I was working at Digital Substation Laboratory in R&D Centre for Power Engineering in Russia. And I also was a specialist at RTSoft Group of Companies in Russia until 2023.

My research interests include digital twins of relay devices, digital substation and IEC 61850, relay protection functions assessment, converter-based energy sources control.

Motivation

I am ambitious to explore new horizons in power system protection and be more involved in research and I am enthusiastic to continue my career in academia and R&D.

Due to experience gained in industry I consider power system protection as one of the most challenging and at the same time perspective directions for my further development.

I believe I can contribute to ADOreD project because I have a strong background in related fields of study due to my previous work experience and education. Further, I have gained useful experience in my field of work and hope to share it with others.

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