The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Aug. 30, 2022
Clemson University, Clemson, SC (US);
Sukumar Brahma, Clemson, SC (US);
Munim Bin Gani, Clemson, SC (US);
CLEMSON UNIVERSITY RESEARCH FOUNDATION, Clemson, SC (US);
Abstract
Systems and methods of determining fault location on a DC microgrid feeder need to be extremely fast to protect the circuit breaker and converter-source components. This disclosure develops a seminal theoretical foundation for fast fault location on a DC feeder that uses only single-ended local measurements in time domain. The theory provides a closed-form deterministic solution for fault location, making the resulting fault location method agnostic to system-topology and immune to fault resistance. The theory is developed with ideal DC voltage sources and is extended to practical converter-sources. The performance of the resulting method is demonstrated by simulating a DC feeder with converters connected at both ends, modeled in PSCAD (power systems computer-aided design).