期刊
ELECTRONICS
卷 10, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/electronics10030280
关键词
power electronics; conduction losses; switching losses; IGBT module
Electric power systems are undergoing significant changes, with power electronic devices playing an increasingly crucial role in this transformation. This paper proposes new loss calculation methods for power electronics losses, splitting them into switching and conduction losses, to better evaluate the performance of power electronic devices.
Electric power systems are facing tremendous changes and power electronic devices are playing an increasingly crucial role in this transformation. In this contest, the study of power electronic devices behavior becomes of the utmost importance, and in particular, evaluation of their losses to understand their performance. Several methods can be found in literature to evaluate power or energy losses, but each of them is associated with shortcomings (such as missing an important factor or having narrow current or voltage range) that in practice become a strong limit to implement them or in a simulation process. To overcome this problem, this paper evaluates existing methods and proposes new loss calculation methods for power electronics losses that can be used within simulation tools at any converter configuration and application range, splitting power electronic losses into switching and conduction losses. The proposed new approach formulates each loss calculation procedure in a systematic way. The presented methods are implemented in Matlab Simulink and simulation results are compared with data obtained from the Semikron SemiSel v4 online tool, which is used as a benchmark. The outcomes reveal that, with this new approach, the proposed methods can cover wider working operation range compared to the existing methods having better accuracy.
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