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Voltage balancing of series IGBTs in short-circuit conditions

Zarghani, M ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1109/TPEL.2021.3132456
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2022
  4. Abstract:
  5. This article proposes a scheme for balancing the voltage of series-connected insulated gate bipolar transistors (IGBTs), which is also very effective under short-circuit conditions. An optimized clamp-mode snubber is proposed, including an active-driver to balance the currents of the IGBTs during short-circuit, which in turn allows for a considerable reduction of the snubber capacitance. The approach is proven to be effective under short-circuit conditions by a maximum of 55 V voltage increment and a negligible difference in the current values. The effectiveness of the proposed approach is demonstrated through simulations in PSPICE software and experimental tests performed at 2 kV. © 1986-2012 IEEE
  6. Keywords:
  7. Clamp mode snubber ; Series insulated gate bipolar transistors (IGBTs) ; Capacitance ; Insulated gate bipolar transistors (IGBT) ; Short circuit currents ; Software testing ; SPICE ; Circuit faults ; Insulatedgate bipolar transistor (IGBTs) ; Series insulated gate bipolar transistor ; Short-circuit conditions ; Short-circuit currents ; Short-circuit fault ; Snubber ; Voltage balancing ; Timing circuits
  8. Source: IEEE Transactions on Power Electronics ; Volume 37, Issue 5 , 2022 , Pages 5675-5686 ; 08858993 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/9635680