Evaluation of Summation Results of Injected Third-Order Harmonic Currents Produced by Micro Hydro Generators with Power-Electronics Converters Using a Probabilistic Approach

Li Wang, Kuo Hua Liu, Ching Chuan Tseng, Anton V. Prokhorov, Hazlie Mokhlis, Chua Kein Huat, Manoj Tripathy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a probabilistic approach to evaluate the summation results of the injected 3rd-order harmonic currents produced by several groups of micro hydro generator (MHG), where the MHGs are scheduled to be installed in several neighboring irrigational canals of Chia-Nan Plain of Southern Taiwan. Each MHG group has different MHG sets connected to an AC bus through the feeders of a distribution system through power-electronics converters consisting of several three-phase AC-to-DC converters, a regulated DC bus, and a large three-phase DC-to-AC inverter. A large harmonic-current source is also connected to the same AC bus to examine the effect of the external harmonic-current source on the summation of the 3rd-order harmonic currents. The mean value and the variance of Gaussian marginal probability density functions (pdf) and their covariance of the injected 3rd-order harmonic currents due to the switching of the power-semiconductor devices inside the power-electronics converters of the MHG sets are calculated and justified by Monte Carlo simulation. The simulation results show that the external large harmonic-current source can affect the probability distribution of the summation results of the injected 3rd-order harmonic currents generated by the MHG groups while the resultant probability distribution of summation of the injected 3rd-order harmonic currents is approximately normal.

Original languageEnglish
Title of host publication2021 IEEE Industry Applications Society Annual Meeting, IAS 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728164014
DOIs
Publication statusPublished - 2021
Event2021 IEEE Industry Applications Society Annual Meeting, IAS 2021 - Vancouver, Canada
Duration: 2021 Oct 102021 Oct 14

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
Volume2021-October
ISSN (Print)0197-2618

Conference

Conference2021 IEEE Industry Applications Society Annual Meeting, IAS 2021
Country/TerritoryCanada
CityVancouver
Period21-10-1021-10-14

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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