Abstract
This paper describes a medium voltage solid-state circuit breaker (SSCB) based on SCR technology, featuring short fault-interruption time and a minimal turn-off auxiliary circuit. The SSCB design incorporates a specialized SCR and a commutation circuit designed with an objective to reduce the required SCR hold-off/turn-off time, tq, which primarily determines the fault interruption duration. To validate the design, simulation analysis is presented, and a 1.5 kV 300 A SSCB prototype has been built and tested. The results confirm the effectiveness of the proposed design philosophy demonstrating the SSCB's ability to interrupt a 200 A load current in less than 50 μs. The proposed SCR-based SSCB has been developed for DC applications but is equally applicable to AC applications.
| Original language | English |
|---|---|
| Title of host publication | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 699-706 |
| Number of pages | 8 |
| ISBN (Electronic) | 9798350376067 |
| DOIs | |
| State | Published - 2024 |
| Event | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Phoenix, United States Duration: Oct 20 2024 → Oct 24 2024 |
Publication series
| Name | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 - Proceedings |
|---|
Conference
| Conference | 2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024 |
|---|---|
| Country/Territory | United States |
| City | Phoenix |
| Period | 10/20/24 → 10/24/24 |
Funding
This work was funded by the U.S. Department of Energy, Office of Electricity. This manuscript has been authored by UT-Battelle, LLC under Contract No. DEAC05- 00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).
Keywords
- DC circuit breaker
- Design
- Medium voltage
- SCR
- Turn-off time (t)