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

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CIRED 2018 Ljubljana WS - 0130 - 21118.pdf (632.38 KB)
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.
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Publisher
AIM
Date
2018-06-07
Published in
CIRED 2018 Ljubljana Workshop on Microgrids and Local Energy Communities
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