Evaluation of core loss calculation methods for highly nonsinusoidal inputs

M. Smailes; C. Ng; R. Fox; J. Shek; M. Abusara; G. Theotokatos; P. McKeever

doi:10.1049/cp.2015.0005

Evaluation of core loss calculation methods for highly nonsinusoidal inputs

M. Smailes, C. Ng, R. Fox, J. Shek, M. Abusara, G. Theotokatos, P. McKeever

Naval Architecture, Ocean And Marine Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

3 Citations (Scopus)

Abstract

A modular, hybrid HVDC transformer, located in the turbine nacelle has been proposed for the offshore wind industry to improve efficiency and redundancy while reducing costs. The injection of harmonics by the transformer power electronics however, complicates the core loss calculations of such a transformer. The standard Steinmetz Equation is no longer valid and the alternative loss equations proposed in the literature are significantly more complicated. Therefore, many in the industry still use the Steinmetz Equation with the signal's Fourier Transform. However, the literature suggests this to be inaccurate without quantifying it. This paper will therefore compare the accuracy of this approach to a prominent alternative presented in the literature, the improved Generalised Steinmetz Equation.

Original language	English
Title of host publication	11th IET International Conference on AC and DC Power Transmission
Publisher	IEEE
Pages	1-7
Number of pages	7
ISBN (Print)	978-1-84919-982-7
DOIs	https://doi.org/10.1049/cp.2015.0005
Publication status	Published - 1 Feb 2015

Keywords

core loss calculation method
wind turbines
turbine nacelle
transformer power electronic
transformer loss
transformer cores
Steinmetz
offshore wind industry
offshore installations

Access to Document

10.1049/cp.2015.0005

Cite this

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title = "Evaluation of core loss calculation methods for highly nonsinusoidal inputs",

abstract = "A modular, hybrid HVDC transformer, located in the turbine nacelle has been proposed for the offshore wind industry to improve efficiency and redundancy while reducing costs. The injection of harmonics by the transformer power electronics however, complicates the core loss calculations of such a transformer. The standard Steinmetz Equation is no longer valid and the alternative loss equations proposed in the literature are significantly more complicated. Therefore, many in the industry still use the Steinmetz Equation with the signal's Fourier Transform. However, the literature suggests this to be inaccurate without quantifying it. This paper will therefore compare the accuracy of this approach to a prominent alternative presented in the literature, the improved Generalised Steinmetz Equation.",

keywords = "core loss calculation method, wind turbines, turbine nacelle, transformer power electronic, transformer loss, transformer cores, Steinmetz, offshore wind industry, offshore installations",

author = "M. Smailes and C. Ng and R. Fox and J. Shek and M. Abusara and G. Theotokatos and P. McKeever",

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T1 - Evaluation of core loss calculation methods for highly nonsinusoidal inputs

AU - Smailes, M.

AU - Ng, C.

AU - Fox, R.

AU - Shek, J.

AU - Abusara, M.

AU - Theotokatos, G.

AU - McKeever, P.

N1 - Date of Acceptance:

PY - 2015/2/1

Y1 - 2015/2/1

N2 - A modular, hybrid HVDC transformer, located in the turbine nacelle has been proposed for the offshore wind industry to improve efficiency and redundancy while reducing costs. The injection of harmonics by the transformer power electronics however, complicates the core loss calculations of such a transformer. The standard Steinmetz Equation is no longer valid and the alternative loss equations proposed in the literature are significantly more complicated. Therefore, many in the industry still use the Steinmetz Equation with the signal's Fourier Transform. However, the literature suggests this to be inaccurate without quantifying it. This paper will therefore compare the accuracy of this approach to a prominent alternative presented in the literature, the improved Generalised Steinmetz Equation.

AB - A modular, hybrid HVDC transformer, located in the turbine nacelle has been proposed for the offshore wind industry to improve efficiency and redundancy while reducing costs. The injection of harmonics by the transformer power electronics however, complicates the core loss calculations of such a transformer. The standard Steinmetz Equation is no longer valid and the alternative loss equations proposed in the literature are significantly more complicated. Therefore, many in the industry still use the Steinmetz Equation with the signal's Fourier Transform. However, the literature suggests this to be inaccurate without quantifying it. This paper will therefore compare the accuracy of this approach to a prominent alternative presented in the literature, the improved Generalised Steinmetz Equation.

KW - core loss calculation method

KW - wind turbines

KW - turbine nacelle

KW - transformer power electronic

KW - transformer loss

KW - transformer cores

KW - Steinmetz

KW - offshore wind industry

KW - offshore installations

U2 - 10.1049/cp.2015.0005

DO - 10.1049/cp.2015.0005

M3 - Conference contribution book

SN - 978-1-84919-982-7

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PB - IEEE

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