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Energies 2017, 10(11), 1864; doi:10.3390/en10111864

Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems

1
Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
2
Public Works Department, Menara Kerja Raya, Jalan Sultan Salahuddin, 50580 Kuala Lumpur, Malaysia
3
University of Malaya Power Energy Dedicated Advanced Centre (UMPEDAC), Level 4, Wisma R&D UM, University of Malaya, 59990 Kuala Lumpur, Malaysia
4
Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
5
Institute of Power Engineering (IPE), Universiti Tenaga Nasional, Jalan Ikram-Uniten, 43000 Kajang, Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Received: 12 October 2017 / Revised: 28 October 2017 / Accepted: 9 November 2017 / Published: 14 November 2017
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

The benefits of distributed generation (DG) based on renewable energy sources leads to its high integration in the distribution network (DN). Despite its well-known benefits, mainly in improving the distribution system reliability and security, there are challenges encountered from a protection system perspective. Traditionally, the design and operation of the protection system are based on a unidirectional power flow in the distribution network. However, the integration of distributed generation causes multidirectional power flows in the system. Therefore, the existing protection systems require some improvement or modification to address this new feature. Various protection strategies for distribution system have been proposed so that the benefits of distributed generation can be fully utilized. This paper reviews the current progress in protection strategies to mitigate the impact of distributed generation in the distribution network. In general, the reviewed strategies in this paper are divided into: (1) conventional protection systems and (2) modifications of the protection systems. A comparative study is presented in terms of the respective benefits, shortcomings and implementation cost. Future directions for research in this area are also presented. View Full-Text
Keywords: distributed generation; distribution system protection; protection coordination distributed generation; distribution system protection; protection coordination
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MDPI and ACS Style

Norshahrani, M.; Mokhlis, H.; Abu Bakar, A.H.; Jamian, J.J.; Sukumar, S. Progress on Protection Strategies to Mitigate the Impact of Renewable Distributed Generation on Distribution Systems. Energies 2017, 10, 1864.

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