Abstract
With the introduction of new energy sources, the structure of DC microgrid is becoming more complex, and short circuit fault diagnosis is inefficient. A rapid diagnosis technology of short circuit fault in DC microgrid is proposed, which consists of two parts: fault classification and fault location. Firstly, the law of transient current change at the beginning and end of a line is analyzed when different faults occur in the line and the converter, and a classification criterion is constructed to judge the fault type by using the rate of change of transient current at the head and end of the line, and a converter fault location criterion is constructed to judge the location of fault converter. Then for line fault location, the mathematical model is established according to the specific type of line fault, the analytical expression of line parameters is given, multiple objective functions are constructed, and the parameters of the fault line are identified by the multi-objective optimization algorithm based on genetic algorithm, and fault location is carried out by using line parameters. Finally, a simulation model of the DC microgrid is built in Matlab/Simulink to prove the validity and practicability of the scheme.
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 callMore From: International Journal of Electrical Power & Energy Systems
Disclaimer: 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.
