Voltage-drop phenomenon and countermeasures in distribution grids with large amount of photovoltaic power generation

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Paper number

0130

Working Group Number

Conference name

CIRED 2018 Ljubljana Workshop

Conference date

7 - 8 June 2018

Conference location

Ljubljana, Slovenia

Peer-reviewed

Yes

Short title

Convener

Authors

Oda, Toshiki, Central Research Institute of Electric Power Industry, Japan
Takahashi, Naoyuki, Central Research Institute of Electric Power Industry, Japan
Uemura, Satoshi, Central Research Institute of Electric Power Industry, Japan

Abstract

In Japan, rapid voltage drop and reduction in interconnection capacity due to degradation of system stability have occurred in long-distance distribution lines with large amounts of photovoltaic power generation (PV). Distributed energy resources such as PV are regarded as the main energy sources in microgrids. To develop microgrid facilities, we need to understand both the system condition of the voltagedrop phenomenon and the limited interconnection capacity based on system stability. In this paper, we describe the distribution system conditions based on the voltage-drop situation. We propose a method to calculate the limited interconnection capacity of grids without using power flow calculation. The validity of the proposed method was verified by comparison with the power flow calculation. Therefore, good results were obtained.

Table of content

Keywords

Publisher

AIM

Date

2018-06-07

Permanent link to this record

https://www.cired-repository.org/handle/20.500.12455/1207
http://dx.doi.org/10.34890/326

ISSN

2032-9628

ISBN

978-2-9602415-1-8