Calculation method for core losses of electrical steel inductors in power electronic applications
Conference: PCIM Europe 2015 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/19/2015 - 05/20/2015 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2015
Pages: 8Language: englishTyp: PDF
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Authors:
Owzareck, Michael (BLOCK Transformatoren-Elektronik GmbH, Verden, Germany)
Abstract:
This paper presents a method for calculating the core losses of electrical steel under waveforms, which are typical for inductors of filters in power electronic applications. Due the non-linearity of the Hysteresis it is not possible to calculate the core losses by using the superposition method. A transient model is used, which based on the principal of loss separation. The core losses of electrical steel are measured with a special measurement system, which can simulate typical waveforms from inductors in power electronic applications. With a developed high frequency Epstein frame it possible to measure with high accuracy also in deep saturation at high frequency. Measurement results and calculation results are compared with each other.