Design of a Switched Mode Latching Current Limiter for Aerospace applications

Abstract

LCLs are mandatory elements in the power subsystem of any satellite. hey area kind of intelligent fuses with the capability of connect and disconnected loads from the bus to protect both, but also, they have the capability of limiting the current during the first milliseconds of the fault. Normally, they behave as linear power supplies during those instants, leading to high power dissipations, jeopardizing the design and the amount of time they can limit the current. In this project, the implementation of an LCL based on a switched power converter is proposed. Selection of the topology, design of the control stage, and design of the magnetic component are the key issues. It is not expected to end with a prototype, but through simulations it would be necessary to identify the main problematic issues and propose solutions. Also, the preliminary design of the magnetic component is expected.