Abstract
With the increasing use of solar energy, DC Microgrid with lower capacities are formed with connection to the traditional main grid. If a short circuit fault occurs in DC microgrids, the contribution of multiple sources including main grid and DC sources might lead to very high fault levels that are difficult to break. While technologies for manufacturing the DC circuit breaker with higher breaking capacity are on-going, another approach by changing tripping sequences in DC protection systems, which could reduce fault currents to be interrupted by a single circuit breaker, was studied in this paper. With the aid of MATLAB/Simulink and OPAL-RT 5700 real time simulation, effectiveness of the proposed approach was evaluated on a Simulink stimulation model of 500 V, 1 MWgrid-connected DC Microgrid. The result obtained indicated that the fault current level interrupted by the DC circuit breakers was reduced by up to 63%.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
