Operation of voltage reactive power control devices based on cooperation between two-voltage class transmission network with pv systems to reduce power loss

Akihisa Kaneko, Shinya Yoshizawa, Yasuhiro Hayashi, Shuhei Sugimura, Yoshinobu Ueda, Takayuki Tanabe

Research output: Contribution to journalArticle

Abstract

Transmission system operators (TSO) are responsible to manage the power quality within a proper range and to reduce power loss. Voltage reactive power control (VQC) is mainly utilized to manage the power flow. In the conventional VQC scheme, the static condenser (SC) and shunt reactor (ShR) is generally adjusted based on the target value determined for the heavy load condition in each voltage class. On the other hand, the installation of the massive photovoltaic (PV) systems into transmission systems cause the complex power flow such as the short-term fluctuation of power flow and reverse power flow from the lower transmission system to the upper transmission system. Thus, in the future power system with PV systems, the target values of the VQC devices need to be updated in the short-time period considering the interaction between the upper and lower transmission system to manage the power quality and to the reduce power loss efficiently. This paper proposes the optimization methodology for VQC devices in two-voltage class of transmission system using tabu-search and optimal power flow based on the central VQC methodology. To verify the effectiveness of the proposed methodology, the numerical simulation was performed based on the revised IEEJ EAST 30-machine system model.

Original languageEnglish
Pages (from-to)484-494
Number of pages11
JournalIEEJ Transactions on Power and Energy
Volume140
Issue number6
DOIs
Publication statusPublished - 2020

Keywords

  • Optimal power flow
  • Photovoltaic system
  • Power loss
  • Tabu-search
  • Transmission network
  • Voltage reactive power control (VQC)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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