Distributed generation (DG) is the future of energy. This technology allows the bidirectional flow of power within an electrical network. Researchers are faced with many challenges to the accurate implementation of protection schemes for DG-connected distribution network. The schemes designed must satisfy the performance requirements of selectivity, reliability, and sensitivity. Most researchers opine that conventional protection schemes based on over current detection are insufficient to completely and accurately protect a DG-connected distributed power system. There are many challenges that need to be tackled before embarking upon the journey to successfully implement these schemes. This paper summarizes the major challenges which one can encounter while designing protection schemes for DG-connected distribution networks. Some possible solutions from the literature are also mentioned. Moreover, a suggested solution for protecting future active distribution networks is provided. It is expected that this paper will act as a benchmark for future researchers in this field to tackle the challenges related to the protection of active distribution networks.
KeywordsDistributed Generation (DG)EnergySelectivitySensitivityReliabilityProtection SchemesActive Distribution Networks
Shahzad, U. (2015) Control Schemes for Distribution Grids with Mass Distributed Generation. International Journal of Information Technology and Electrical Engineering, 4, 14-18. http://www.iteejournal.org/archive/vol4no2/v4n2_3.pdf
Shahzad, U. (2015) The Need for Renewable Energy Sources. International Journal of Information Technology and Electrical Engineering, 4, 16-19. http://www.iteejournal.org/archive/vol4no4/v4n4_4.pdf
Shahzad, U. and Asgarpoor, S. (2017) A Comprehensive Review of Protection Schemes for Distributed Generation. Energy and Power Engineering, 9, 430-463. https://doi.org/10.4236/epe.2017.98029
Chiradeja, P. and Ramakumar, R. (2004) An Approach to Quantify the Technical Benefits of Distributed Generation. IEEE Power & Energy Society, 19, 764-773. https://doi.org/10.1109/TEC.2004.827704
Lopes, J.A., et al. (2007) Integrating Distributed Generation into Electric Power Systems: A Review of Drivers, Challenges and Opportunities. Electric Power Systems Research, 77, 1189-1203. https://doi.org/10.1016/j.epsr.2006.08.016
Chowdhury, S. and Crossley, P. (2009) Microgrids and Active Distribution Networks. IET, London. https://doi.org/10.1049/PBRN006E
Lasseter, R.H. (2002) Microgrids. Proceedings of the IEEE Power Engineering Society, New York, 1-2 January 2002, 305-308. https://doi.org/10.1109/PESW.2002.985003
Liang, T (2011) From Laboratory Microgrid to Real Markets—Challenges and Opportunities. Proceedings of IEEE International Conference on Power Electronics, Jeju, 30 May-3 June 2011, 264-271.
Ustun, T.A., Ozansoy, C. and Zayegh, A. (2012) Modeling of a Centralized Microgrid Protection System and Distributed Energy Resources According to IEC 61850-7-420. IEEE Transactions on Power Systems, 27, 1560-1567. https://doi.org/10.1109/TPWRS.2012.2185072
Jiang, W., et al. (2010) The Overview of Research on Microgrid Protection Development. Proceedings of International Conference on Intelligent System Design and Engineering Application, Beijing, 4-6 March 2010, 692-697.
Kroposki, B., et al. (2008) Making Microgrids Work. IEEE Power and Energy Magazine, 6, 40-53. https://doi.org/10.1109/MPE.2008.918718
Verma, R. and Siddiqui, M.A. (2015) Awareness on Microgrids and Various Protection Issues to Overcome in It. International Journal of Scientific & Technology Research, 4, 27-29. http://www.ijstr.org/final-print/may2015/Awareness-On-Microgrids-And-Various-Protection-Issues-To-Overcome-In-It.pdf
Conti, S., Raffa, L. and Vagliasindi, U. (2009) Innovative Solutions for Protection Schemes in Autonomous MV Micro-Grids. International Conference on Clean Electrical Power, Capri, 9-11 June 2009, 647-654.
Sortomme, E., Venkata, S.S. and Mitra, J. (2010) Microgrid Protection Using Communication Assisted Digital Relay. IEEE Transactions on Power Delivery, 25, 2789-2795. https://doi.org/10.1109/TPWRD.2009.2035810
Parsai, A., et al. (2010) Protection of Meshed Microgrids withCommunication Overlay. Energy Conversion Congress and Exposition, Atlanta, 12-16 September 2010, 64-71.
Dewadasa, M., et al. (2009) Control and Protection of a Microgridwith Converter Interfaced Micro Sources. International Conference on Power Systems, Karagpur, 27-29 December 2009, 1-6.
Zamani, M., Sidhu, T. and Yazdani, A. (2011) A Protection Strategy and Microprocessor Based Relay for Low Voltage Microgrids. IEEE Transactions on Power Delivery, 26, 1873-1883. https://doi.org/10.1109/TPWRD.2011.2120628
Pepermans, G., Driesen, J., Haeseldonckx, D., Belmans, R. and D’haeseleer, W. (2005) Distributed Generation: Definition, Benefits and Issues. Energy Policy, 33, 787-798. https://doi.org/10.1016/j.enpol.2003.10.004
Coster, E.J. (2010) Distribution Grid Operation Including Distributed Generation. Eindhoven University of Technology, The Netherlands.
Brown, A. and Ayres, F. (2012) Development of Distributed Generation in the United States. Report on the United States Experience on the Development of Distributed Generation Policies.
Khan, S.A., Ali, R. and Hussain, S. (2009) Introduction to Microgrid. http://www.slideshare.net/Shahabkhan/microgrid-presentation
Salam, A., Mohamed, A. and Hannan, M.A. (2008) Technical Challenges on Microgrids. ARPN Journal of Engineering and Applied Sciences, 3, 64-69. https://www.arpnjournals.com/jeas/research_papers/rp_2008/jeas_1208_146.pdf
Venkataramanan, G., and Illindala, M.S. (2007) Small Signal Dynamics of Inverter Interfaced Distributed Generation in a Chain Microgrid, IEEE Power Engineering Society General Meeting. Tampa, 24-28June 2007, 1-6.
Pogaku, N., Prodanovic, M. and Green, T.C. (2007) Modeling, Analysis and Testing of Autonomous Operation of an Inverter-Based Microgrid. IEEE Transactions on Power Electronics, 22, 613-625. https://doi.org/10.1109/TPEL.2006.890003
Lopes, J.A. (2005) Control Strategies for Microgrids Emergency Operation. International Conference on Future Power Systems, Amsterdam, 18 November 2005, 1-6. https://doi.org/10.1109/FPS.2005.204226
Feng, W., Vilathgamuwa, M. and Choi, S.S. (2012) Mitigation of Harmonics of DFIGs in DC Microgrids. IEEE Energy Conversion Congress & Exposition, Singapore, 15-20 September 2012, 1946-1953.
Classification of Faults (2011). https://www.elprocus.com/what-are-the-different-types-of-faults-in-electrical-power-systems/
Blackburn, L. (2007) Protective Relaying Principles and Applications. CRC Press, Boca Raton.
Hui, K. and Chao, M. (2011) Impact of Microgrid on Protection of Distribution Networks and Protection Strategy of Microgrid. Proceedings of International Conference on Advanced Power System Automation and Protection, Beijing, 16-20 October 2011, 356-359.
Barker, P. and Mellow, D. (2000) Determining the Impact of Distributed Generation on Power Systems. IEEE Power Engineering Society, 3, 1645-1656.
Kumar, P.A., Shankar, J. and Nagaraju, Y. (2013) Protection Issues in Microgrid. International Journal of Applied Control, Electrical and Electronics Engineering, 1, 1-12. http://airccse.com/ijaceee/papers/1113ijaceee02.pdf
Al-Nasseri H., Redfern M.A. and Gorman, O. (2005) Protecting Micro-Grid Systems Containing Solid-State Converter Generation. Proceedings of the International Conference on Future Power Systems, Amsterdam, 18 November 2005, 1-5.
Miveh, M.R., Gandomkar, M., Mirsaeidi, S. and Gharibdoost, M.R. (2012) A Review on Protection Challenges in Microgrids. Electric Power Distribution Conference, Tehran, 2-3 May 2012, 1-5.
Soder, L (2009) Protection of Low Voltage DC Microgrids. IEEE Transactions on Power Delivery, 24, 1045-1053. https://doi.org/10.1109/TPWRD.2009.2016622
Dugan, R.C. and McDermot, T.E. (2001) Operating Conflicts for Distributed Generation on Distribution Systems. Proceedings of Rural Electric Power Conference, Little Rock, 29 April-1 May 2001, A3/1-A3/6.
Brearly, B.J. and Prabu, R.R. (2017) A Review on Issues and Approaches for Microgrid Protection, Renewable and Sustainable Energy Reviews, 67, 988-997. https://doi.org/10.1016/j.rser.2016.09.047
Memon, A.A and Kauhaniemi, K. (2015) A Critical Review of AC Microgrid Protection Issues and Available Solutions. Electric Power Systems Research, 129, 23-31. https://doi.org/10.1016/j.epsr.2015.07.006
Beddoes, A., Dickson, Y. and Kerford, L. (1999) Small-scale Single Phase Embedded Generators connected at LV. 15th International Conference on Electricity Distribution, London, 2-4 March 1999, 1-5.
Kin, B., et al. (2003) Agent Based Adaptive Protective Coordination in Power Distribution System. 17th International Conference on Electricity Distribution. Barcelona, 12-15 May 2003, 1– 7.
Sudhakar, P., Malaji, S. and Sarvesh, B. (2014) Protection and Control Challenges of a Distributed Generation Injected Distribution Network. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 3, 1-12. https://www.rroij.com/open-access/protection-and-control-challenges-of-adistributed-generation-injected-distributionnetworks.pdf
Coster, E., Myrzik, J. and Kling, W. (2010) Effect of DG on Distribution Grid Protection. InTech, Rijeka.
Hussain, B, Sharkh, S., Hussain, S., and Abusara, M. (2010) Integration of Distributed Generation into the Grid: Protection Challenges and Solutions. 10th IET International Conference on Developments in Power System Protection, Manchester, 29 March 2010, 1-5.
Laverty, D.M, Best, R.J. and John, M.D. (2015) Loss of Mains Protection System by Application of Phasor Measurement Unit Technology with Experimentally Assessed Threshold Settings. IET Generation, Transmission & Distribution, 9,146-153. https://doi.org/10.1049/iet-gtd.2014.0106
Mozina, C.J. (2001) Interconnection Protection of IPP Generators at Commercial/Industrial Facilities. IEEE Transactions on Industry Applications, 37, 681-688. https://doi.org/10.1109/28.924745
Mozina, C.J. (2003) Interconnect Protection of Dispersed Generators. Technical Report, Beckwith Electric Co. Inc, Largo.
Redfern, M.A., Brown, D. and Bartlett, M.G. (2001) Detecting Loss of Earth for Embedded Generation, IEEE 7th International Conference on Developments in Power System Protection, Amsterdam, 9-12 April 2001, 90-93.
Nikkhajoei, H. and Lasseter, R. (2007) Microgrid Protection. Proceedings of IEEE Power Engineering Society General Meeting, Tampa, 24-28 June 2007, 1-6. https://doi.org/10.1109/PES.2007.385805
Mirsaeidi, S., et al. (2014) Progress and Problems in Microgrid Protection Schemes, Renewable & Sustainable Energy Reviews, 37, 834-839. https://doi.org/10.1016/j.rser.2014.05.044
Salman, S.K., King, D.J. and Weller, G. (2001) New Loss of Mains Detection Algorithm for Embedded Generation Using Rate of Change of Voltage and Changes in Power Factors. IEEE 7th International Conference on Developments in Power System Protection, Amsterdam, 9-12 April 2011, 82-85.
Beheshtaein, S., et al. (2015) Protection of AC and DC Microgrids: Challenges, Solutions, and Future Trends. IEEE 41st Annual Conference on Industrial Electronics Society, Yokohama, 9-12 November 2015, 5253-5260.
Buigues, G., et al. (2013) Microgrid Protection: Technical Challenges and Existing Techniques. International Conference on Renewable Energies and Power Quality. Bilbao, 20-22 March 2013, 222-227. https://doi.org/10.24084/repqj11.262
Funabashi, T. (2016) Integration of Distributed Energy Resources in Power Systems. Elsevier, Cambridge.
Brearly, B.J. and Prabu, R.R (2017) A Review on Issues and Approaches for Microgrid Protection. Renewable and Sustainable Energy Reviews, 67, 988-997. https://doi.org/10.1016/j.rser.2016.09.047
Jenkins, N. (2000) Embedded Generation. IET, Hertfordshire. https://doi.org/10.1049/PBPO031E
Hodgkingson, G. (1998) System Implications of Embedded Generation and Its Protection and Control. IEE Technical Report, Birmingham, 25 February 1998, 1-15.
IEEE Recommended Practice for Utility Interface of Photovoltaic (PV) Systems (2000) IEEE Std 929-2000. http://ieeexplore.ieee.org/document/836389/
IEEE Application Guide for IEEE Std 1547 (2009) IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems. http://ieeexplore.ieee.org/servlet/opac?punumber=4816076
Dugan, R.C., Key, T.S. and Ball, G.J. (2005) On Standards for Interconnecting Distributed Resources. Rural Electric Power Conference. San Antonio, 8-10 May 2005, D2/1-D2/8.
Gururajapathy, S.S., Mokhlis, H. and Illias, H.A. (2017) Fault Location and Detection Techniques in Power Distribution System with Distributed Generation: A Review. Renewable and Sustainable Energy Reviews, 74, 949-958. https://doi.org/10.1016/j.rser.2017.03.021
Purushothama, G.K., et al. (2001) ANN Applications in Fault Locators. International Journal of Electrical Power & Energy Systems, 23, 491-506. https://doi.org/10.1016/S0142-0615(00)00068-5
Khorashadi, H. (2004) A Novel Approach to Detection High Impedance Faults using Artificial Neural Network. Proceedings of the Universities Power Engineering Conference, Bristol, 6-8 September 2004, 373-376.
Hagh M.T., et al. (2007) Fault Classification and Location of Power Transmission Lines using Artificial Neural Network. Proceedings of the Power Engineering Conference, Singapore, 3-6 December 2007, 1109-1114.
Cardoso, J., et al. (2004) Application of Neural-Network Modules to Electric Power System Fault Section Estimation. IEEE Transactions on Power Delivery, 19, 1034-1041. https://doi.org/10.1109/TPWRD.2004.829911
Pradhan, A.K., et al. (2004) Higher Order Statistics-Fuzzy Integrated Scheme for Fault Classification of a Series-Compensated Transmission Line. IEEE Transactions on Power Delivery, 19, 891-893. https://doi.org/10.1109/TPWRD.2003.820413
Das, B. and Reddy, J.V. (2005) Fuzzy-Logic-Based Fault Classification Scheme for Digital Distance Protection. IEEE Transactions on Power Delivery, 20, 609-616. https://doi.org/10.1109/TPWRD.2004.834294
Das, B. (2006) Fuzzy Logic-Based Fault-Type Identification in Unbalanced Radial Power Distribution System. IEEE Transactions on Power Delivery, 21, 278-285. https://doi.org/10.1109/TPWRD.2005.852273
Yadav, A.S. (2015) Fuzzy Inference System Approach for Locating Series, Shunt, and Simultaneous Series-Shunt Faults in Double Circuit Transmission Lines. Computational Intelligence and Neuroscience l, 5, 1-12.
Shuma, N.S. and Dorendrajit, T. (2016) Fuzzy Logic Based On-line Fault Detection and Classification in Transmission Line. Springer-Plus, 5, 1-14.
Bedekar, P.P., et al. (2011) Fault Section Estimation in Power System Using Hebb’s Rule and Continuous Genetic Algorithm. International Journal of Electrical Power and Energy System, 33, 457-465. https://doi.org/10.1016/j.ijepes.2010.10.008
Jin., Q. and Ju, R. (2012) Fault Location for Distribution Network based on Genetic Algorithm and Stage Treatment. Proceedings of the Spring Congress on Engineering and Technology, Xi’an, 27-30 May 2012, 1-4. https://doi.org/10.1109/SCET.2012.6342090
Li, Y. (2012) A Fault Location Method Based on Genetic Algorithm for High-Voltage Direct Current Transmission Line. International Transactions on Electrical Energy System, 22, 866-878. https://doi.org/10.1002/etep.1659
Majid, S.K. and Jamil, D.K. (2015) Fault Classification of Three-Phase Transmission Network using Genetic Algorithm. International Journal of Engineering and Applied Sciences, 2, 84-88. https://www.ijeas.org/download_data/IJEAS0207041.pdf
Mokhlis, H. and Li, H. (2007) Fault Location Estimation for Distribution System Using Simulated Voltage Sags Data. Proceedings of the Universities Power Engineering Conference, Brighton, 4-6 September 2007, 242–247. https://doi.org/10.1109/UPEC.2007.4468953
Mokhlis, H, Bakar, A., Talib, D. and Mohamad, H. (2010) The Improvement of Voltage Sags Pattern Approach to Locate a Fault in Distribution Network. International Review of Electrical Engineering, 5, 1159-1164. http://repository.um.edu.my/8129/1/VOL_5_N_3.pdf
Mokhlis, H. and Li, H. (2011) Non-Linear Representation of Voltage Sag Profiles for Fault Location in Distribution Networks. Electrical Power and Energy Systems, 33, 124-130. https://doi.org/10.1016/j.ijepes.2010.06.020
Awalin L.J. and Mokhlis, H. (2012) Improved Fault Location on Distribution Network Based on Multiple Measurements of Voltage Sags Pattern. IEEE International Conference on Power and Energy, Kota Kinabalu, 2-5 December 2012, 767-772.
Elkhatib, M., Ellis, A., Biswal, M., Brahma, S. and Ranade, S (2016) Protection of Renewable-dominated Microgrids: Challenges and Potential Solutions. Technical Report (Sandia National Laboratories), Albuquerque, November 2016, 1-85.
Hatziargyriou, N. (2014) Microgrids: Architecture and Control. Wiley & Sons, Athens.