Precision Calorimetry for the Accurate Measurement of Losses in Power Electronic Devices

Weier, S.; Shafi, M.A.; McMahon, R.A.

doi:10.1109/08ias.2008.361

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…The heat transfer through the inner chamber walls is completely eliminated. A detailed description of principally similar calorimeter as carried out in [5].…”

Section: Calorimetric Measurementmentioning

confidence: 99%

A Simple Calorimetric Measurement of SiC MOSFET Switching Loss and Comparison with Electric Measurement

Miklas¹,

Procházka²

2022

Proceedings II of the 28st Conference STUDENT EEICT 2022: Selected Papers.

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This paper proposes a simple and accessible method for dynamic calorimetric measurement of ultra-fast power semiconductor devices switching loss. It utilizes a temperature rise monitoring of a copper cube thermally coupled with a semiconductor chip. No special chambers or heat exchangers are used and no additional wiring compared to standard electric pulsed test. This provides an opportunity to perform a direct comparison with traditional electric power loss measurement, including all of the parasitic influences and further investigation of power loss with intentional varying of particular elements impact, which absent in available literature. The paper establishes the test method and setup as well as a basic comparison of calorimetric and electric measurement.

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“…The heat transfer through the inner chamber walls is completely eliminated. A detailed description of principally similar calorimeter as carried out in [5].…”

Section: Calorimetric Measurementmentioning

confidence: 99%

A Simple Calorimetric Measurement of SiC MOSFET Switching Loss and Comparison with Electric Measurement

Miklas¹,

Procházka²

2022

Proceedings II of the 28st Conference STUDENT EEICT 2022: Selected Papers.

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“…Different kinds of calorimeters are constructed to determine the losses of electrical devices. These calorimeters can be divided into two basic types; open type with air as a coolant [11]- [14] and close type with water as a coolant [15]- [17]. Lately, the calorimetric systems have been mainly used to verify the losses of high-efficiency converters and a concern of electric power measurement accuracy with distorted waveforms is highlighted [18]- [21].…”

Section: Calorimetric Conceptmentioning

confidence: 99%

Application of Calorimetric Method for Loss Measurement of a SynRM Drive System

Aarniovuori

Kolehmainen

Kosonen

et al. 2016

IEEE Trans. Ind. Electron.

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Abstract-Synchronous reluctance motors (SynRMs) are gaining in popularity in industrial drives due to their permanent magnet-free, competitive performance and robust features. This paper studies the power losses in a 90 kW converter-fed SynRM drive by a calorimetric method in comparison of the traditional input-output method. After the converter and the motor were measured simultaneously in separate chambers, the converter was installed inside the large-size chamber next to the motor and the total drive system losses were obtained using one chamber. The uncertainty of both measurement methods is analyzed and discussed.Index Terms-Calorimeter, converter, efficiency, electric drive, induction motor, measurement, synchronous reluctance motors power loss, temperature, uncertainty, variable speed drive, voltage-source converter. I. INTRODUCTIONLECTCRIC MOTORS form the most important type of load in the industry, consuming about 65-70% of the electric energy [1]. Hence, thermal and efficiency issues are among the hot topics in the electrical machines and drives community [2]. In general, the electric motor efficiency is continuing to improve and this poses new challenges to the motor loss determination. New and more efficient constructions have to be verified by measurements. The usage of permanent magnets is rising the machine efficiency [3], but due to high prices, supply problems and temperature dependence of permanent magnets, there is a high demand for magnet free motor such as switched reluctance (SRM) [4] and SynRMs. In principle, the SynRMs represent an established and mature Manuscript received March 9, 2015; revised August 24, 2015; accepted October 8, 2015.Copyright © 2015 IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending a request to pubs-permissions@ieee.org L. Aarniovuori, A. Kosonen, M. Niemelä, and J. Pyrhönen are with the Department of Electrical Engineering, Lappeenranta University of Technology (LUT), Lappeenranta, Finland (e-mail: lassi.aarniovuori@lut.fi; antti.kosonen@lut.fi; markku.niemela@lut.fi; juha.pyrhonen@lut.fi) J. Kolehmainen is with ABB Motors and Generators, Vaasa, Finland (email: jere.kolehmainen@fi.abb.com) H. Chen is with the Queens University of Belfast (QUB), Belfast, Northern Ireland UK (e-mail: h.chen@qub.ac.uk) W. Cao is with the School of Engineering and Applied Science, Aston University, Birmingham, U.K. (email: w.p.cao@aston.ac.uk) technology, but the modern frequency converter control may lead to new features and properties of the motor.Synchronous reluctance motors establish a promising technology with potentials to replace permanent-magnet synchronous motors (PMSMs) and induction motors as the main motor in industrial variable-speed applications. The SynRM rotor has neither windings nor magnets, thus improving the rotor reliability and eliminating the reliance on rare-earth-based permanent magnets. A high-inductance-ratio rotor structure is manufactured from p...

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“…Because of the high efficiency, and hence low losses, the simple subtraction of output power from input power involves a small relative difference between these quantities, and is therefore prone to large errors and low accuracy. Calorimetry is a recognized means for the direct measurement of losses in power electronics inverters, which can be used to overcome these difficulties [32]- [35].…”

Section: Introductionmentioning

confidence: 99%

Analytical Conduction Loss Calculation of a MOSFET Three-Phase Inverter Accounting for the Reverse Conduction and the Blanking Time

Acquaviva

Rodionov

Kersten

et al. 2021

IEEE Trans. Ind. Electron.

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The reverse conduction capability of MOSFETs is beneficial for the efficiency of a threephase inverter. In this paper analytical expressions in closed form are presented which allow to quickly evaluate the conduction losses, considering the effect of the reverse conduction and blanking time for both sinusoidal PWM operation with and without third harmonic injection. The losses of a three-phase SiC MOSFET inverter suitable for traction applications are estimated with the proposed method and show good agreement of about 98.5 % with measurements, performed with a calorimetric setup. Index Terms-Analytical models, calorimetry, power MOSFET, pulse width modulated inverters, traction motor drives.

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Precision Calorimetry for the Accurate Measurement of Losses in Power Electronic Devices

Cited by 9 publications

References 6 publications

A Simple Calorimetric Measurement of SiC MOSFET Switching Loss and Comparison with Electric Measurement

A Simple Calorimetric Measurement of SiC MOSFET Switching Loss and Comparison with Electric Measurement

Application of Calorimetric Method for Loss Measurement of a SynRM Drive System

Analytical Conduction Loss Calculation of a MOSFET Three-Phase Inverter Accounting for the Reverse Conduction and the Blanking Time

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