Book chapter
Soft Turn-Off Capacitively Coupled SSCBs for MVDC Applications
Direct Current Fault Protection, pp 119-135
2023
Abstract
The growing technology of solid-state circuit breakers (SSCBs) has been reported as one of the driving factors in developing MVDC systems. This chapter deals with the capacitive couple-based transient current commutation technique in SSCBs. The state-of-the-art active injection circuits are introduced, and their applications in wide bandgap-based SSCBs are illustrated. In addition, the technology of capacitive coupling interface in transient current commutation is explained, and the advantages are highlighted. Along with developing mathematical investigations, MVDC experiments are also presented. Applying transient current commutation in SSCBs achieves a soft turn-off in the main switch during DC current breaking. Eliminating the transient power on solid-state switches and mitigating the gate voltage oscillations are two significant outcomes, which help to enhance the reliability and lifetime of the breakers in long term.
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Details
- Title
- Soft Turn-Off Capacitively Coupled SSCBs for MVDC Applications
- Creators
- Fei Lu - Drexel UniversityReza Kheirollahi - Drexel University
- Publication Details
- Direct Current Fault Protection, pp 119-135
- Series
- Power Systems
- Publisher
- Springer International Publishing; Cham
- Resource Type
- Book chapter
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Scopus ID
- 2-s2.0-85160312544
- Other Identifier
- 991020836492104721