State of the technology of power loss determination in power converters

Fuchs, Friedrich W.; Schröder, Jörg; Wittig, Bjoern

doi:10.1109/epe.2013.6634736

Cited by 18 publications

(2 citation statements)

References 11 publications

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“…These methods input-output, calorimetric, and analytical methods. The methods are presented and characterized in [21], and their limitations are shown and compared.…”

Section: Bibliographical Reviewmentioning

confidence: 99%

Voltage-Source Converter Energy Efficiency Classification in Accordance With IEC 61800-9-2

Aarniovuori

Kärkkäinen

Anuchin

et al. 2020

IEEE Trans. Ind. Electron.

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New global energy efficiency classification standard IEC 61800-9-2 for frequency converters and motor systems has been recently launched. It classifies the energy efficiency of the converters and motor-drive systems and introduces three different methods to determine a voltage source converter (VSC) losses for the classification. In here, experimental tests are carried out using the input-output method and the calorimetric method to determine the losses and efficiency of a 160 kW commercial voltage source converter (VSC). The measurement results with these two independent methods are compared and the uncertainty of the methods are analyzed. The converter electric input and output power distributions are analyzed in the frequency domain and are used further to estimate the electric power measurement uncertainty. The measurement uncertainty related to losses obtained with the input-output method is compared with the loss difference between the two methods. This is the first research work to accurately evaluate the experimental methods for the determination of the power losses and examine the validity of the energy efficiency classes of the frequency converters according to new IEC61800-9-2. An urgent need to update the loss boundaries of the IE-classes has been found and the measurement uncertainty effect on the IE-classification is discussed.

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“…These methods input-output, calorimetric, and analytical methods. The methods are presented and characterized in [21], and their limitations are shown and compared.…”

Section: Bibliographical Reviewmentioning

confidence: 99%

Voltage-Source Converter Energy Efficiency Classification in Accordance With IEC 61800-9-2

Aarniovuori

Kärkkäinen

Anuchin

et al. 2020

IEEE Trans. Ind. Electron.

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“…Following the publication of the norm, an upsurge of activities related to loss calculation appeared again in the literature. The inverter losses, actually intended as the CDM losses, are discussed in [2] and [3]. Some methods to calculate losses in permanent magnet assisted synchronous machines are discussed in [4].…”

Section: Introductionmentioning

confidence: 99%

On the true maximum efficiency operations of synchronous motor drives

Tinazzi¹,

Sandulescu²,

Peretti³

et al. 2017

2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS)

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Energy efficient AC drives for synchronous machines are key components in modern mechatronic systems, including applications of renewable energy and transportation. It is possible that the next generation of synchronous motors may be of the reluctance-prevalent type, due to the ecological footprint and cost of permanent magnet materials. When a reluctance torque is available, the torque is usually regulated according to the maximum torque per ampere principle which minimises the copper losses for a given torque request. However, iron and additional losses also contribute to the total machine losses, although their influence on the best current vector trajectory for total loss minimisation is not clear yet. The aim of this paper is to discuss and quantitatively evaluate the effect of iron and additional losses on the efficiency of different synchronous machines, looking for the true maximum efficiency. An extended batch of measurements performed on different types of machines with low power rating are discussed in detail.

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