Imperial College London
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Dr Zohaib Akhtar

Faculty of Engineering, Department of Electrical and Electronic Engineering

Senior Teaching Fellow - Laboratory Systems
 
 
 
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Contact

 

+44 (0)20 7594 6310z.akhtar

 
 
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Location

 

401Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Akhtar:2016:10.1016/j.renene.2016.06.053,
author = {Akhtar, Z and Saqib, MA},
doi = {10.1016/j.renene.2016.06.053},
journal = {Renewable Energy},
pages = {148--157},
title = {Microgrids formed by renewable energy integration into power grids pose electrical protection challenges},
url = {http://dx.doi.org/10.1016/j.renene.2016.06.053},
volume = {99},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - System parameters of a microgrid change in its two operating modes primarily due to output current limitation of PWM based inverters connected with renewable energy sources. The unavailability of an appropriate protection scheme, which must be compatible with both modes of a microgrid operation, is a major problem in the implementation of a microgrid. Two important properties of the microgrid components are peer-to-peer, and plug-and-play. It means that there is no component like a master controller which is critical for the operation of a system, and a distributed-generation unit can be installed at any location in a microgrid. These properties further complicate the protection of a microgrid. This paper reports the MATLAB/SIMULINK model of a microgrid along with the models of the conventional protection schemes and renewable energy distributed-generation resources. Malfunctioning in the conventional protection schemes in islanding mode is identified and models of newly proposed protection schemes are developed. Different types of faults are simulated in all the protection zones of the system and the system parameters are analysed to identify the possible fault detection methods. Based on the simulation results, a protection scheme is recommended that can meet the protection standards such as selectivity, co-ordination and reliability.
AU  - Akhtar,Z
AU  - Saqib,MA
DO  - 10.1016/j.renene.2016.06.053
EP  - 157
PY  - 2016///
SN  - 1879-0682
SP  - 148
TI  - Microgrids formed by renewable energy integration into power grids pose electrical protection challenges
T2  - Renewable Energy
UR  - http://dx.doi.org/10.1016/j.renene.2016.06.053
UR  - http://hdl.handle.net/10044/1/34519
VL  - 99
ER  -
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