99.3% Efficient Three-Phase Buck-Type All-SiC SWISS Rectifier for DC Distribution Systems

Schrittwieser, Lukas; Leibl, Michael; Haider, Michael; Thony, Friedrich; Kolar, Johann W.; Soeiro, Thiago Batista

doi:10.1109/tpel.2018.2817074

Cited by 87 publications

(21 citation statements)

References 40 publications

(21 reference statements)

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“…Splitting power flow between the two channels with the same resistance may reduce conduction losses up to two times. As a result, interleaving is an approach that enables converter design with extremely high efficiency and power density by means of N channel utilization [34,35]. Evidently, however, this leads to an increase in cost.…”

Section: Component Selection and Comparisonmentioning

confidence: 99%

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

et al. 2020

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This paper presents a comprehensive feasibility study of an interleaving approach for a quasi-Z-source inverter. The state-of-the-art approach revealed that an interleaving approach is often used to improve the efficiency and power density that can overcome the problem of oversized passive elements of quasi-Z-source-based converters. The focus is on the application of the interleaving approach in terms of the comparison of several important parameters of a quasi-Z-source inverter. Our analysis includes losses, capacitor and inductor sizes, as well as semiconductor costs. The theoretical comparison is based on the quasi-Z-source inverter model and the losses model. Simulation and experimental verification of theoretical statements are provided. It was found that a 40% reduction of inductor volume, along with 15–20% of efficiency improvements, are achievable. The results are discussed in the conclusion.

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Section: Component Selection and Comparisonmentioning

confidence: 99%

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

et al. 2020

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“…The measurement accuracy has been verified at 10 kW, 98.8% peak efficiency GaN-based three phase inverter. A highly accurate calorimetric system for power electronics loss determination is presented in [28] and is used especially for the loss determination of ultra-high efficiency silicon carbide power electronic circuits [29], [30].…”

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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“…Furthermore, the weight and volume of the converter passive components are likely to be reduced [14][15][16][17], which is very appealing for several applications, where the overall size and weight of the electrical generating system needs to be minimized. Given the high number of benefits, more and more multilevel converter topologies are proposed in the literature [17][18][19][20][21]. It is understood that multilevel topology can act on the voltage stress of the power semiconductors, leaving their current ratings unchanged.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, the confirmed power density and specific power are 1.4 kW/dm 3 and 2.5 kW/kg. In [20] a three-phase T-Type converter, called Swiss Rectifier, has been designed using SiC power devices. The declared peak efficiency and power density were 99.26% and 4 kW/dm 3 , respectively.…”

Section: Introductionmentioning

confidence: 99%

High-Performance 3-Phase 5-Level E-Type Multilevel–Multicell Converters for Microgrids

et al. 2021

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This paper focuses on the analysis and design of two multilevel–multicell converters (MMCs), named 3-phase 5-Level E-Type Multilevel–Multicell Rectifier (3Φ5L E-Type MMR) and 3-phase 5-Level E-Type Multilevel–Multicell Inverter (3Φ5L E-Type MMI) to be used in microgrid applications. The proposed 3-phase E-Type multilevel rectifier and inverter have each phase being accomplished by the combination of two I-Type topologies connected to the T-Type topology. The two cells of each phase of the rectifier and inverter are connected in interleaving using an intercell transformer (ICT) in order to reduce the volume of the output filter. Such an E-Type topology arrangement is expected to allow both the high efficiency and power density required for microgrid applications, as well as being capable of providing good performance in terms of quality of the voltage and current waveforms. The proposed hardware design and control interface are supported by the simulation results performed in Matlab/Simulink. The analysis has been then validated in terms of an experimental campaign performed on the converter prototype, which presented a power density of 8.4 kW/dm3 and a specific power of 3.24 kW/kg. The experimental results showed that the proposed converter can achieve a peak efficiency of 99% using only silicon power semiconductors.

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99.3% Efficient Three-Phase Buck-Type All-SiC SWISS Rectifier for DC Distribution Systems

Cited by 87 publications

References 40 publications

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

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

High-Performance 3-Phase 5-Level E-Type Multilevel–Multicell Converters for Microgrids

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