Investigation of the Stability Due to Disturbance with SFS Anti-islanding Protection in Multi-DGs System

DOI

10.2991/ifeesm-15.2015.42How to use a DOI?

Keywords

anti-islanding protection, threshold values, system stability, system parameters, multi-DGs system, SFS.

Abstract

This paper presents an improved model of multi-DGs system for analyzing the system stability during grid-connected. The DGs, in the system, are equipped with the Sandia frequency shift (SFS) scheme as anti-islanding protection technique. Relationship of system parameters, such as the length of distribution line, positive feedback with SFS, and stability margins are identified by introducing these variables in the improved model. Through the quantitative analysis, the stability threshold values of the length of distribution line are obtained based on the eigenvalues locus. Although the model is built with SFS proposed as anti-islanding protection technique, the improved model can be adopted to analysis the other anti-islanding protection techniques. This process allows the designers and engineers of renewable energy system to optimize system and ensure stability. Finally, several study cases are carried out through simulation to verity the results obtained from the model. Based on these study cases, general guidelines are recommended to ensure the multi-DGs system stability, which are useful for system analysis, planning and recon guration.

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  - Hongjun Zhang
AU  - Zhenghang Hao
AU  - Zhiqiang He
PY  - 2015/09
DA  - 2015/09
TI  - Investigation of the Stability Due to Disturbance with SFS Anti-islanding Protection in Multi-DGs System
BT  - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
PB  - Atlantis Press
SP  - 214
EP  - 221
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-15.2015.42
DO  - 10.2991/ifeesm-15.2015.42
ID  - Zhang2015/09
ER  -