Impact of three-phase system

Impact of three-phase system

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This chapter focuses on the limitations and impacting factors of switching performance of WBG devices in a three-phase power converter, and their influences on the accuracy of the dynamic characterization results based on the conventional DPT.

Chapter Contents:

  • 10.1 Impacting factors and limitations in the actual three-phase system
  • 10.1.1 Parasitics of inductive load
  • Impact of induction motor on switching performance
  • Impact of induction motor with power cable on switching performance
  • 10.1.2 Interaction of phase-legs
  • 10.1.3 Coupling effect by heat sink
  • 10.1.4 Experimental verification
  • Hardware setup
  • Methodology for experimental verification
  • Experimental results
  • 10.2 Dynamic characterization with practical application considerations
  • 10.2.1 High-frequency modeling of inductive load
  • 10.2.2 Basic idea for mitigation of adverse effect from inductive load
  • 10.2.3 Design criteria of the auxiliary filter
  • 10.2.4 Experimental verification
  • 10.3 Case study: validation of the DPT results vs. switching performance in an actual system
  • 10.3.1 Switching performance comparison between DPT board and three-phase VSC
  • 10.3.2 Interaction of phase-legs and impact of heat sink on the switching performance
  • 10.3.3 Validation of the accuracy of DPT results in comparison with switching performance in an actual converter
  • 10.4 Summary
  • References

Inspec keywords: power semiconductor devices; wide band gap semiconductors; switching convertors

Other keywords: WBG devices; switching performance; three-phase system; three-phase power converter; DPT

Subjects: Power convertors and power supplies to apparatus; Power semiconductor devices

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