Plug-in Harmonic Voltage Mitigation for Variable Frequency Electric Aircraft

Wei Chen, Yexin Yan, Jinli Zhang, Yang Qi, Weilin Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The variable frequency AC electrical power system has become the mainstream of future more electric aircrafts (MEAs). With the increasing use of aviation DC load equipment, the quality of DC bus power supply becomes increasingly important. To supply the DC bus voltage from AC generators, transformer diode rectifier units are conventionally used, which are straightforward and reliable. However, the output of passive rectifier units contains massive harmonic distortions that degrade the power quality. To solve this issue, Considering the energy storage batteries for the existing auxiliary power in the aircraft's variable frequency A C units, this paper develops a plug-in harmonic mitigation technique based on the existing DC/DC converter. The variance of AC voltage frequency, i.e., 360Hz-800Hz, is first identified by a frequency-locked loop (FLL). On this basis, harmonic compensation is implemented using a voltage resonant control method, frequency-adaptive harmonic compensation is realized through an auxiliary function of the DC/DC converter. In addition, a proportional-integral (PI) control method is employed to regulate the output power of the energy storage battery. Finally, simulation results validate the feasibility of the proposed approach.

Original languageEnglish
Title of host publicationProceedings of 2024 IEEE 7th International Electrical and Energy Conference, CIEEC 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3246-3251
Number of pages6
ISBN (Electronic)9798350359558
DOIs
StatePublished - 2024
Event7th IEEE International Electrical and Energy Conference, CIEEC 2024 - Harbin, China
Duration: 10 May 202412 May 2024

Publication series

NameProceedings of 2024 IEEE 7th International Electrical and Energy Conference, CIEEC 2024

Conference

Conference7th IEEE International Electrical and Energy Conference, CIEEC 2024
Country/TerritoryChina
CityHarbin
Period10/05/2412/05/24

Keywords

  • frequency-adaptive harmonic compensation
  • frequency-locked loop
  • more eclectic aircrafts
  • plug-in

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