Analysis on Performance of DC Microgrid under Fault Condition

  • Ya Min Soe No.9, Yangon and 11181, The Union of Myanmar
  • Soe Soe Ei Aung No.9, Yangon and 11181, The Union of Myanmar
  • Zar Linn No.9, Yangon and 11181, The Union of Myanmar
Keywords: DC Microgrid, Distributed Generation, High Quality Power, Converters, Faults.


DC Microgrid is the high quality electric power by using DC distribution focused on the development of renewable energy resources such as photovoltaic cells, wind turbines, fuel cells and etc. In this system, DC grid is connected to the AC utility grid through AC/DC rectifier and several distributed generations are connected to DC line through converters in order to improve the reliability of the power system. Most of the faults cause on overhead lines of power system. When a fault occur on a power system, it is very important to check quickly, to detect it, to find its definite location and to restore power system as soon as possible. In this paper, the configurations of DC microgrid system and control methods of distributed generation are expressed. Moreover, fault on source side, fault on load side and fault on DC transmission line are analyzed. Faults are shown single line to ground fault for generation side and load side and line to line fault for DC transmission side. In order to identify the various faults characteristics of DC Microgrid, simulation results are performed with Matlab/ Simulink Software.


[1] R. Dugan, T. McDermott, “Distributed generation”, IEEE Ind. Appl. Mag., vol. 8, no. 2, pp 19-25, Mar./Apr. 2002.
[2] H. Kakigano, Y. Miura, T. Ise, and R. Uchida, “DC Voltage Control of the DC Micro-grid for Super High Quality Distribution,” The Fourth Power Conversion Conference, Japan, 2007, pp. 518-525.
[3] Kakigano, Y. Miura, T. Ise, and R. Uchida, “DC Micro-grid for Super High Quality Distribution – System Configuration and Control of Distributed Generations and Energy Storage Devices,” 37th Annual IEEE Power Electronics Specialist Conference (PESC), Korea, 2006.
[4] H. Kakigano, Y. Miura, T. Ise, T. Momose and H. Hayakawa,“Fundamental Characteristics of DC Microgrid for Residential Houses With Cogeneration System in Each House,” IEEE Power & Energy Society 2008.
[5] Rote Sunil Kalyan, Kulkarni J.S, “Protection of Low Voltage DC Bus Microgrids System” IEEE Trans. Power Del., vol. 3, Issue 7, July 2015.
[6] Maanickam KARTHIKEYAN, Abhisek UKIL, “Simulation and Analysis of Faults in High Voltage DC Power Transmission”, Nanyang Technological University, Singapore, 2014.
[7] Jae-Do Park and Jared Candelaria, “Fault Detection and Isolation in Low Voltage DC Bus Microgrid System” IEEE Trans.Power Del.,vol. 28, no. 2, A pr. 2013.
[8] K. Sreedhar Kumar, J N Chandra Sekhar, “Limitation of Fault Currents by Positionind of Superconducting Fault Current Limiter in AC and DC Microgrid” IEEE Trans.Power Del.,vol. 4, no. 2, February. 2015.
[9] Li,chendan; Chaudhary, Sanjay Kumar; Dragicevic, Tomislav, “Power Flow Analysis for DC Voltage Droop Controlled DC Microgrids,” 11th International Multiconference on Systems, Signal & amp; Devices, SSD