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
• 10.1.1.1 Impact of induction motor on switching performance
• 10.1.1.2 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
• 10.1.4.1 Hardware setup
• 10.1.4.2 Methodology for experimental verification
• 10.1.4.3 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