Three-Level Gate Driver for Latching Current Limiter in DC Microgrid Protection
Alejandro Latorre (TU Delft - Transport Engineering and Logistics)
Thiago Batista Soeiro (University of Twente)
R.D. Geertsma (TU Delft - Ship Design, Production and Operations)
Henk Polinder (TU Delft - Transport Engineering and Logistics)
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Abstract
The development of DC protection systems is an enabler of widespread adoption of DC microgrids. This paper introduces a three-level gate driver that provides the latching current limiter functionality in a solid-state circuit breaker with unidirectional protection. The proposed gate driver combines the output port description of a well-known, enabled gate driver with a soft turn-off network. The corresponding circuit can be adapted to well-established SSCBs, requiring few modifications which could allow for quick development. The concept, simulation, implementation and experimental validation of the gate driver are in the scope of the paper. The gate driver is implemented and tested in a solid-state circuit breaker prototype, showing the potential to develop further DC protection devices.
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File under embargo until 10-03-2026