Some novel techniques for improving power quality in distribution networks

Xiangjun Zeng, K. K. Li, Wai Lok Chan, Xianggen Yin

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Power quality is influenced by neutral grounding methods in distribution systems. Optimization for neutral grounding methods is discussed in the paper. Petersen-coil in parallel with high resistance earthed technique has a better performance in safety and power quality than other neutral point grounding techniques. To improve power quality, a novel method for measurement of zero sequence impedance in distribution systems is presented, Petersen-coil inductance is adjusted to compensate the total capacitance, and the resistor which is in parallel with the Petersen-coil is adjusted to control the over-voltage; some other novel techniques for grounding fault feeder protection based on testing the fault resistance or the energy dissipated in the fault point are also presented. The method of Petersen-coil tuning has been developed. Experimental results show that the optimization for neutral grounding methods and the protections proposed can improve the power quality by reducing the over-voltage, the residual current and the grounding fault duration.
Original languageEnglish
Title of host publicationProceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
Pages306-310
Number of pages5
Volume1
Publication statusPublished - 25 Nov 2004
EventProceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) - Hong Kong, Hong Kong
Duration: 5 Apr 20048 Apr 2004

Conference

ConferenceProceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004)
CountryHong Kong
CityHong Kong
Period5/04/048/04/04

Keywords

  • Fault detection
  • Petersen-coil tuning
  • Power quality
  • Protective relaying

ASJC Scopus subject areas

  • Engineering(all)

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