PV Inverter-Based Fair Power Quality Control

Aswin Ramesh Vadavathi*, Gerwin Hoogsteen, Johann Hurink

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
138 Downloads (Pure)

Abstract

Low voltage distribution networks incorporating solar photovoltaic (PV) panels experience overvoltage and voltage unbalance during periods of low load and high PV generation. Resolving overvoltage by active power curtailment (APC) is an effective and cost-efficient solution. However, current APC techniques result in excessive and unfair power curtailment for prosumers at the sensitive parts of the grid that might induce neutral current. In this work, an analytical approach for fair APC and Reactive Power Control is presented for voltage regulation along with neutral current compensation. The desired power quality is maintained by controlling each phase of the PV inverter independently. The proposed algorithm regulates the voltage at the point of common coupling (PCC) within grid limits, eliminates neutral current, and reduces the grid unbalance. Furthermore, the results demonstrate that reducing the neutral current reduces the voltage at the PCC and consequently decreases the power curtailment required for overvoltage regulation.

Original languageEnglish
Pages (from-to)3776-3790
Number of pages15
JournalIEEE transactions on smart grid
Volume14
Issue number5
DOIs
Publication statusPublished - 1 Sept 2023

Keywords

  • Analytical models
  • Distributed power generation
  • Power generation control
  • Voltage control
  • 2023 OA procedure

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