Study on Relay Protection of Small Hydro-power Station in Isolated Power Grid

DOI

10.2991/meic-15.2015.94How to use a DOI?

Keywords

Small hydro-power station; Longitudinal differential protection; isolated power grid; Micro grid; PSCAD/EMTDC

Abstract

Because the trend in small hydro-power micro grid flows bi-directionally, the traditional strategy which based on phase voltage change and load shedding has become increasingly unreliability. In order to adapt to the new application environment of small hydro-power micro grid, and to improve the protection installations, reliability and accuracy, longitudinal differential protection is used in power feeder with small hydro-power, so as to avoid the disadvantages of the traditional strategy. Constructing a micro grid with hydro-power stations working in isolated power grid by PSCAD/EMTDC software is used to prove that the strategy is effective and practicable .

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Mingzhe Cao
AU  - Genghuang Yang
AU  - Xin Su
AU  - Qingling Wang
PY  - 2015/04
DA  - 2015/04
TI  - Study on Relay Protection of Small Hydro-power Station in Isolated Power Grid
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 406
EP  - 409
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.94
DO  - 10.2991/meic-15.2015.94
ID  - Cao2015/04
ER  -