Using Braking Resistor to Improve the Performance of Neutral Point Clamped and Parallel Interleaved DFIG Converters

  • Kenneth Okedu Department of Electrical and Electronic Engineering Kitami Institute of Technology, Hokkaiddo, Japan

Abstract

Recently, the use of multilevel converters is on the rise for medium and high voltage applications. Multilevel Converters (MLCs) have the merit of clamping the voltages thereby preventing the need for fast switching, in addition to providing cleaner output waveform for effective switching. As wind turbines are increasing in power ratings, MLCs could be well suited in regards to this application. This paper investigates the performance of a Neutral Point Clamped three-level converter system and a two-level parallel interleaved MLC system in a DFIG variable speed wind turbine during transient. The space vector modulations, switching sequences and strategies of both MLCs were analyzed. The DFIG-based wind turbine system was subjected to a severe grid fault to test the strength of both MLC systems. Furthermore a braking resistor connected to the stator of the DFIG was used to improve the performance of both MLC system. Simulations were run using Power System Computer Aided Design and Electromagnetic Transient Including DC platform. Results obtained using both MLCs were compared based on the performance index of some of the DFIG variables. Also, the responses of the MLCs were compared to the traditional two level DFIG converter topology.  
Published
2023-10-09
How to Cite
OKEDU, Kenneth. Using Braking Resistor to Improve the Performance of Neutral Point Clamped and Parallel Interleaved DFIG Converters. Journal of Power Technologies, [S.l.], v. 103, n. 3, p. 159-172, oct. 2023. ISSN 2083-4195. Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1343>. Date accessed: 27 dec. 2024.
Citation Formats
Issue
Vol 103 No 3 (2023)
Section
Renewable and Sustainable Energy

Keywords

Renewable energy; DFIG; Power converters; Grid fault; Multilevel converters
Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).

Most read articles by the same author(s)

Obs.: This plugin requires at least one statistics/report plugin to be enabled. If your statistics plugins provide more than one metric then please also select a main metric on the admin's site settings page and/or on the journal manager's settings pages.