Development of Control and Protection System for Multi-point Interconnected Distribution System

2020 Fiscal Year Final Research Report

• Project/Area Number: 18K04103
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Aoki Mutsumi 名古屋工業大学, 工学(系)研究科(研究院), 准教授 (70362316)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Keywords: 配電系統のループ運用 / ループパワーフローコントローラ

Outline of Final Research Achievements

The purpose of this research is to develop a control system and protection system for a multi-point interconnected distribution system that can support mass interconnection of distributed power sources using renewable energy. There are problems that when the substations of the distribution line are separate and the phase difference of the voltage between the substations is large, the current between the lines becomes large. In this research, it is proposed that a series voltage control device consisting of thyristors and transistors as a new series voltage control device that can control the power flow even in such a case. It is also constructed that the SVR installation position during loop operation and the control method for the loop power flow controller, and verified its effect by simulation. In addition, the basic configuration of the protection system was examined.

Free Research Field

電力システム工学

Academic Significance and Societal Importance of the Research Achievements

太陽光発電などの再生可能エネルギー電源が大量に連系された場合の配電系統の電圧適正範囲維持は，将来の配電系統において重要な課題である。変電所間の位相差を考慮した複数回線の配電線を連系した配電系統に関する電圧制御機器の検証や新しい直列電圧制御機器の開発は，過去にも研究事例があまりなく，配電系統運用の幅を広げる実用性が高いものである。