Optimal smart functions of large-scale PV inverters in distribution systems

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

9 Citations (Scopus)


This research considers some smart inverter functions of photovoltaic (PV) generations as options for power utilities to improve system performance. The potential impacts of these functions on voltage, energy loss, and power curtailment are investigated first. Then, parameters of volt-var and volt-watt control are coordinated with a step voltage regulator to minimize the social cost. After that, simulations of a tested system containing a 6.6kV-feeder, which includes large-scale PVs, and low-voltage networks, which contain a large number of rooftop solar panels, are performed in the OPENDSS software with real data collected in Japan. Results show that appropriate smart inverter functions can be remedies for an overvoltage issue caused by high PV generation. Although the energy loss may be higher than that of the no-control case, parameters of smart functions and utility devices could be set optimally to balance the capital conflicts between utilities and PV owners on a daily basis.

Original languageEnglish
Title of host publication2017 IEEE Innovative Smart Grid Technologies - Asia
Subtitle of host publicationSmart Grid for Smart Community, ISGT-Asia 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages7
ISBN (Electronic)9781538649503
Publication statusPublished - 2018 Jun 8
Event7th IEEE Innovative Smart Grid Technologies - Asia, ISGT-Asia 2017 - Auckland, New Zealand
Duration: 2017 Dec 42017 Dec 7


Other7th IEEE Innovative Smart Grid Technologies - Asia, ISGT-Asia 2017
CountryNew Zealand


  • Active power curtailment
  • Photovoltaics
  • Smart inverter functions
  • Voltage control

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization
  • Safety, Risk, Reliability and Quality

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