Voltage Sag Region Study in Distributed Power Supply

DOI

10.2991/icecee-15.2015.137How to use a DOI?

Keywords

Voltage Sag; Distributed Power Supply; Sag Region; Photovoltaic Plant.

Abstract

This paper established two types of models of distributed power supply in PSCAD/EMTDC and connected these two power supplies in the power distribution networks with 18 nodes to simulate respectively under specified voltage control and specified power factor strategies. Then, the simulated data was loaded into Matlab to analyze and calculate. It can be concluded that the shorter the distance between the interconnected of photovoltaic plant and the sensitive points, the more significant compensation effect of voltage sag, the amplitude of the voltage sag went down with the temperature increase and went up with the illumination intensity increase. When the threshold value of the voltage sag’s 70% was obtained under specified voltage at the sag region and power factor control strategies based on root mean square value method, the connection of photovoltaic plant can effectively slow down the severity of the voltage sag, which makes the possibility of the influence of power distribution network on sensitive equipment largely go down. The bigger the capacity of the photovoltaic cell, the shorter distance between interconnected location and sensitive load, the smaller the sag depth at sensitive load locations, as well as the shorter the duration time of the sag.

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  - Xining Lu
AU  - Hao Liu
AU  - Kai He
AU  - Qing Xu
AU  - Xiaolin Chen
PY  - 2015/06
DA  - 2015/06
TI  - Voltage Sag Region Study in Distributed Power Supply
BT  - Proceedings of the 2015 International Conference on Electrical, Computer Engineering and Electronics
PB  - Atlantis Press
SP  - 690
EP  - 697
SN  - 2352-538X
UR  - https://doi.org/10.2991/icecee-15.2015.137
DO  - 10.2991/icecee-15.2015.137
ID  - Lu2015/06
ER  -