Development of auxiliary converter based on 1700V/325A full SiC MOSFET for urban rail transit vehicles

Wu, Donghua; Xiao, Chanjuan; Zhang, Hao; Liang, Wencai

doi:10.1109/itec-ap.2017.8080769

Cited by 5 publications

References 12 publications

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“…To enhance the lightweight level of the auxiliary converter of urban rail vehicles, a full SiC intermediate frequency auxiliary converter combining full SiC power devices and intermediate frequency auxiliary power supply technology has become a development trend [1][2][3][4][5], and the study of its core component, the full SiC intermediate frequency isolated DC-DC converter, is more important.…”

Section: Introductionmentioning

confidence: 99%

Parameters Optimization of an Intermediate Frequency Isolated SiC Power DC-DC Converter

Kang

Pan

et al. 2022

IEEE Access

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To improve the lightweight level of auxiliary converters for urban rail vehicles, full SiC intermediate frequency auxiliary converters have become a trend. Aiming at its core component, a full SiC intermediate frequency isolated DC-DC converter using Boost + LLC topology is studied in this paper. The working principle and characteristics of the converter are analyzed in detail. Based on the operating characteristics of the LLC resonant converter and the realization mechanism of soft switching, an optimization design method of the resonant parameters is proposed, which can make LLC resonant converters exhibit the characteristics of DC transformers and realize soft switching in the full load range. Considering the power losses of the converter and the voltage stress of SiC MOSFET, the design method of the intermediate bus voltage is given. Finally, the correctness of the parameter design method is verified by simulation and experiment, and the performance of the full SiC intermediate frequency isolated DC-DC converter is analyzed. When the input voltage is 1500V and the output power is 15kW, the efficiency of the converter reaches 96.21%. Compared with the Si intermediate frequency isolated DC-DC converter, the power density is improved by 80.62%.

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Section: Introductionmentioning

confidence: 99%

Parameters Optimization of an Intermediate Frequency Isolated SiC Power DC-DC Converter

Kang

Pan

et al. 2022

IEEE Access

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“…Therefore, the studies applying the high voltage SiC power module into various applications are introducing in lots of papers [19][20][21][22][23][24][25][26][27][28][29]. The SiC power module with 1700 V class has been applied for the auxiliary converter of railway vehicle [20,25]. The switching frequency of 50 kHz is used in the resonant converter consisting 1700 V class SiC power module in [20].…”

Section: Introductionmentioning

confidence: 99%

“…The SiC power module with 1700 V class has been applied for the auxiliary converter of railway vehicle [20,25]. The switching frequency of 50 kHz is used in the resonant converter consisting 1700 V class SiC power module in [20]. In the catenary-free tram, the SiC power module with 1700 V class and hybrid SiC power with 1700 V class for the DC-DC converter used in the energy storage system are compared to Si module with 1700 V class [21].…”

Section: Introductionmentioning

confidence: 99%

Switching Frequency Determination of SiC-Inverter for High Efficiency Propulsion System of Railway Vehicle

Ryu¹,

Lee²,

Lee³

2020

Energies

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This paper suggests the reasonable switching frequency determination method for achieving highest efficiency of the railway propulsion system consisting the silicon carbide (SiC) inverter and permanent magnet synchronous motor (PMSM). The SiC power device allows increasing the switching frequency of the inverter because it has the small switching power loss. The total efficiency is taken into account for determining the switching frequency of SiC inverter in this paper. In the efficiency analysis of SiC inverter and PMSM, the PMSM drive control is considered with the hybrid switching method combined the synchronous PWM and asynchronous PWM. The result of the analysis shows the efficiency curve of propulsion system depending on the switching frequency. The switching frequency having the minimum power loss of propulsion system is selected based on the extracted power loss curve.

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Development of auxiliary converter based on 1700V/325A full SiC MOSFET for urban rail transit vehicles

Cited by 5 publications

References 12 publications

Parameters Optimization of an Intermediate Frequency Isolated SiC Power DC-DC Converter

Parameters Optimization of an Intermediate Frequency Isolated SiC Power DC-DC Converter

Switching Frequency Determination of SiC-Inverter for High Efficiency Propulsion System of Railway Vehicle

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