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Evaluation and Supp...
Evaluation and Suppression Method of Turn-off Current Spike for SiC/Si Hybrid Switch
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- Qin, Haihong (författare)
- Nanjing University of Aeronautics and Astronautics
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- Xie, Sixuan (författare)
- Nanjing University of Aeronautics and Astronautics
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- Ba, Zhenhua (författare)
- Nanjing University of Aeronautics and Astronautics
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- Liu, Xiang (författare)
- Nanjing University of Aeronautics and Astronautics
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- Chen, Wenming (författare)
- Nanjing University of Aeronautics and Astronautics
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- Fu, Dafeng (författare)
- Nanjing University of Aeronautics and Astronautics
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- Xun, Qian, 1990 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: IEEE Access. - 2169-3536 .- 2169-3536. ; 11, s. 26832-26842
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- SiC MOSFET/Si IGBT (SiC/Si) hybrid switch usually selects the gate control pattern that SiC MOSFET turns on earlier and turns off later than Si IGBT, with the aim of making the hybrid switch show excellent switching characteristics of SiC MOSFET and reduce switching loss. However, when SiC MOSFET turns off, the fast slew rate of drain source voltage causes the current spike in Si IGBT due to the effects of parasitic capacitance charging and carrier recombination, which will produce additional turn-off loss, thus affecting the overall efficiency and temperature rise of the converter. Based on the double pulse test circuit of SiC/Si hybrid switch, the mathematical model of the turn-off transient process is established. The effects of the remnant carrier recombination degree of Si IGBT, the turn-off speed of SiC MOSFET and the working conditions on the turn-off current spike of hybrid switch are evaluated. Although adjusting these parameters can reduce the turn-off current spike somewhat, additional losses will be introduced. Therefore, a new method to suppress the turn-off current spike is proposed to balance the power loss and current stress.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- MOSFET
- current spike
- Switches
- suppression method
- Delays
- hybrid switch
- SiC MOSFET/Si IGBT
- Insulated gate bipolar transistors
- Logic gates
- Silicon carbide
- Silicon
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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