Logo image
A Boost-based Step-up Converter Implementation to Charge Capacitor in an LCC Active Injection Current Circuits for SSCBs
Conference proceeding

A Boost-based Step-up Converter Implementation to Charge Capacitor in an LCC Active Injection Current Circuits for SSCBs

Elias Nadi, Reza Kheirollahi, Shuyan Zhao and Hua Zhang
IEEE Energy Conversion Congress and Exposition, pp 4227-4230
20 Oct 2024

Abstract

Active injection current Boost converter Energy conversion Prototypes Solid state circuit breakers Solid state circuits Technological innovation ZCS Zero current switching Capacitors
This paper introduces a novel Boost-based step-up converter designed to charge a capacitor in an inductor- capacitor-capacitor (LCC) active current injection circuit for solid-state circuit breakers (SSCBs). Precharging the capacitor is crucial for generating a pulse current. The paper explains the converter's working principle and the operation of SSCBs. Experiments validate the proposed converter, demonstrating successful charging of a capacitor to 160V from a 15V DC source. Discharging this capacitor subsequently generates a 40A pulse current, achieving zero current switching (ZCS) for the SSCB. Additionally, ten circuits are connected in parallel to demonstrate 400A operation for a 1.5kV SSCB prototype. The proposed converter is suitable for precharged capacitor configurations and can be easily implemented into such boards. It is also cost-effective and compact due to its limited number of components.

Metrics

Details

Logo image