Abstract
Unlike conventional AC systems, the DC systems cannot sustain high-magnitude fault currents. Therefore, detection, location, and identification of faults are the issues of great importance. On this basis, in this paper, three methods are investigated to detect a fault and determine its exact location and its type in DC microgrids. A module is installed at the beginning and end of all grid lines to implement the proposed method. Modules provide current and voltage sample signals and using the proposed triple algorithms analyze these signals online. Accordingly, modules use current amplitude, voltage amplitude, and current differential to detect fault occurrence. After detecting a fault, fault location algorithm activates to determine the fault location. On this basis, modules which have detected the fault use the fault current direction to determine its location. In the proposed fault-type identification algorithm, its type is identified by modules that detect the fault using the voltage drop that is caused by the fault. The proposed triple methods are implemented on two sample DC microgrids in DIgSILENT software. The results prove that the proposed method is capable of determining the occurrence of all types of DC faults, their exact location, and their identification considering structural uncertainties of the network. In addition, the proposed method can discriminate between transient and permanent faults with high accuracy.
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References
Abdali A et al (2017) Fast fault detection and isolation in low-voltage DC microgrids using fuzzy inference system. In: 5th Iranian joint congress on fuzzy and intelligent systems (CFIS). pp 172–177
Abdali A et al (2019) Simultaneous control and protection schemes for DC multi microgrids systems. Int J Electr Power Energy Syst 104:230–245
Amamra S-A et al (2017) Firefly algorithm optimized robust protection scheme for DC microgrid. Electr Power Compon Syst 45:1141–1151
Aswani J, Kanakasabapathy P (2016) Protection of a low-voltage DC ring microgrid system. In: International conference on energy efficient technologies for sustainability (ICEETS). pp 17–22
Balasreedharan SS, Thangavel S (2016) An adaptive fault identification scheme for DC microgrid using event based classification. In: 3rd international conference on advanced computing and communication systems (ICACCS). pp 1–7
Basak P et al (2012) A literature review on integration of distributed energy resources in the perspective of control, protection and stability of microgrid. Renew Sustain Energy Rev 16:5545–5556
Conti S (2009) Analysis of distribution network protection issues in presence of dispersed generation. Electr Power Syst Res 79:49–56
Conti S, Nicotra S (2009) Procedures for fault location and isolation to solve protection selectivity problems in MV distribution networks with dispersed generation. Electr Power Syst Res 79:57–64
Dhar S, Dash PK (2017) Differential current-based fault protection with adaptive threshold for multiple PV-based DC microgrid. IET Renew Power Gener 11:778–790
Dhar S et al (2018) Fault detection and location of photovoltaic based DC microgrid using differential protection strategy. IEEE Trans Smart Grid 9:4303–4312
Eslami R et al (2017a) A probabilistic approach for the evaluation of fault detection schemes in microgrids. Eng Technol Appl Sci Res 7:1967–1973
Eslami R et al (2017b) A novel method for fault detection in future renewable electric energy delivery and management microgrids, considering uncertainties in network topology. Electr Power Compon Syst 45:1118–1129
Hosseini SA et al (2016) An overview of microgrid protection methods and the factors involved. Renew Sustain Energy Rev 64:174–186
Hosseini SA et al (2018a) Improving adaptive protection to reduce sensitivity to uncertainties which affect protection coordination of microgrids. Iran J Sci Technol Trans Electr Eng 42:63–74
Hosseini SA et al (2018b) A decision-tree scheme for responding to uncertainties in microgrid protection coordination. Electr Power Compon Syst 46:1–14
Howlader A et al (2018) Design and line fault protection scheme of a DC microgrid based on battery energy storage system. Energies 11:1823–1845
Jae-Do P et al (2013) DC ring-bus microgrid fault protection and identification of fault location. IEEE Trans Power Deliv 28:2574–2584
Jamali SZ et al (2018) A high-speed fault detection, identification, and isolation method for a last mile radial LVDC distribution network. Energies 11:2901
Lv C et al (2018) Single-ended protection scheme for VSC-based DC microgrid lines. Energies 11:1440–1457
Maqsood A, Corzine K (2016) DC microgrid protection: using the coupled-inductor solid-state circuit breaker. IEEE Electr Mag 4:58–64
Meghwani A et al (2017) A non-unit protection scheme for DC microgrid based on local measurements. IEEE Trans Power Deliv 32:172–181
Ming Y et al (2016) DC short circuit fault analysis and protection of ring type DC microgrid. In: IEEE 8th international power electronics and motion control conference. pp 1694–1700
Mohanty R, Pradhan AK (2017) Protection of smart DC microgrid with ring configuration using parameter estimation approach. IEEE Trans Smart Grid 9:1
Mohanty R, Pradhan AK (2018) DC ring bus microgrid protection using the oscillation frequency and transient power. IEEE Syst J 13:1–10
Nimpitiwan N et al (2007) Fault current contribution from synchronous machine and inverter based distributed generators. IEEE Trans Power Deliv 22:634–641
Park JD, Candelaria J (2013) Fault detection and isolation in low-voltage DC-bus microgrid system. IEEE Trans Power Deliv 28:779–787
Salomonsson D et al (2009) Protection of low-voltage DC microgrids. IEEE Trans Power Deliv 24:1045–1053
Shabani A, Mazlumi K (2019) Evaluation of a communication-assisted overcurrent protection scheme for photovoltaic based DC microgrid. IEEE Trans Smart Grid. https://doi.org/10.1109/TSG.2019.2923769
Shehzad Hassan MA et al (2018) Microgrid control and protection state of the art: a comprehensive overview. J Electr Syst 14:148–164
Wen H, Weiqiang Z (2016) Control and protection of DC microgird with battery energy storage system. In: IEEE international conference on power electronics, drives and energy systems (PEDES). pp 1–6
Zhao Z et al (2016) Hierarchical coordinated control of multi bus-based DC microgrid considering fault occurred in buses. In: China international conference on electricity distribution (CICED). pp 1–6
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Eslami, R., Hosseini, S.A. Presenting New Triple Methods for Fault Detection, Location, and Its Identification in DC Microgrid. Iran J Sci Technol Trans Electr Eng 44, 849–860 (2020). https://doi.org/10.1007/s40998-019-00274-8
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DOI: https://doi.org/10.1007/s40998-019-00274-8