Controlling the output voltage frequency response of the auxiliary commutated pole inverter

Apollo Charalampous, Xibo Yuan, Neville McNeill, Sam Walder, Qingzeng Yan, Clive Frederickson

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)
297 Downloads (Pure)


The auxiliary commutated pole inverter (ACPI) is a PWM soft-switching topology usually employed for switching loss reduction. This work however investigates how the two traditional ACPI control schemes, fixed- and variable-timing, can shape the transitioning edges of the inverter's output voltage. Its frequency response can then be predicted and its high-frequency content mitigated, with potential enhancements to the inverter's Common Mode Electromagnetic Interference (CM EMI) performance. By addressing the EMI problem at source, lighter passive filters might be used, beneficial to applications where high power densities are desirable. A 5-kW, 3-phase ACPI prototype is utilized for proof of concept.
Original languageEnglish
Title of host publication42nd Annual Conference of the IEEE Industrial Electronics Society, IECON 2016
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781509034741
ISBN (Print)9781509034758
Publication statusPublished - 22 Dec 2016


  • Switches
  • Inverters
  • Electromagnetic interference (EMI)
  • Frequency response
  • RLC circuits
  • Stress
  • Soft-switching
  • auxiliary commutated pole inverter

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