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Design and Testing of a Low Voltage Solid-State Circuit Breaker for a DC Distribution System

Author

Listed:
  • Leslie Tracy

    (Electrical Engineering Program, School of Engineering and Computer Science, Washington State University, Vancouver, WA 98686, USA)

  • Praveen Kumar Sekhar

    (Electrical Engineering Program, School of Engineering and Computer Science, Washington State University, Vancouver, WA 98686, USA)

Abstract

In this study, a low voltage solid-state circuit breaker (SSCB) was implemented for a DC distribution system using commercially available components. The design process of the high-side static switch was enabled through a voltage bias. Detailed functional testing of the current sensor, high-side switch, thermal ratings, analog to digital conversion (ADC) techniques, and response times of the SSCB was evaluated. The designed SSCB was capable of low-end lighting protection applications and tested at 50 V. A 15 A continuous current rating was obtained, and the minimum response time of the SSCB was nearly 290 times faster than that of conventional AC protection methods. The SSCB was implemented to fill the gap where traditional AC protection schemes have failed. DC distribution systems are capable of extreme faults that can destroy sensitive power electronic equipment. However, continued research and development of the SSCB is helping to revolutionize the power industry and change the current power distribution methods to better utilize clean renewable energy systems.

Suggested Citation

  • Leslie Tracy & Praveen Kumar Sekhar, 2020. "Design and Testing of a Low Voltage Solid-State Circuit Breaker for a DC Distribution System," Energies, MDPI, vol. 13(2), pages 1-13, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:2:p:338-:d:307191
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