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- Title
Fault Detection in Ring Based Smart LVDC Microgrid Using Ensemble of Decision Tree.
- Authors
Tiwari, S. P.
- Abstract
In modern infrastructure, the demand for DC power-based appliances is rapidly increasing, and this phenomenon has created a positive impact on the acceptance of the DC microgrid. However, due to numerous issues such as the absence of zero crossing, bidirectional behavior of current, different magnitudes of fault current during grid connected and islanded modes of operation protection of the DC microgrid remains a difficult task. Apart from these challenges, intermittent conditions are also a major challenge throughout the year. Under such type scenarios, shadow conditions in the solar based DERs will reduce the desired output of the solar panels simultaneously wind based DERs will be also affected due to the low pressure of air. In this type of circumstances, threshold setting based overcurrent relays may fail to sense the operational dynamics of the system. Therefore, in this manuscript, an ensemble of decision tree-based protection scheme is proposed to provide immunity against the stochastic conditions under the varying nature of the fault resistances. A total of 7150 test cases have been considered for validation of the protection scheme and all modules have been tested. After successful testing of the modules, the accuracy of the mode detection module is 99.23% for grid connected mode and 98.16% for islanded mode. Similarly, for fault detection/classification modules, accuracies are 99.06% and 97.98% respectively for both of the modes. The outcomes after validation of the protection scheme reveal that the protection scheme is robust and efficiently working.
- Subjects
MICROGRIDS; ELECTRIC power system faults; SOLAR panels; DECISION trees; ACCURACY
- Publication
Iranian Journal of Electrical & Electronic Engineering, 2022, Vol 18, Issue 4, p1
- ISSN
1735-2827
- Publication type
Article
- DOI
10.22068/IJEEE.18.4.2600