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Implementation of 99.96% Efficiency SSCB at 100 A/1hour Continuous Thermal Testing
Conference proceeding

Implementation of 99.96% Efficiency SSCB at 100 A/1hour Continuous Thermal Testing

Shuyan Zhao, Reza Kheirollahi, Hua Zhang and Fei Lu
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings
01 Jan 2022

Abstract

Circuit breakers Circuit design Circuits Electric potential Energy conversion Modular design Modularity Voltage
Conference Title: 2022 IEEE Energy Conversion Congress and Exposition (ECCE) Conference Start Date: 2022, Oct. 9 Conference End Date: 2022, Oct. 13 Conference Location: Detroit, MI, USAThis paper presents an implementation of a modular medium-voltage direct-current (MVDC) solid-state circuit breaker (SSCB) with high efficiency. The proposed design methodology is modularity oriented, which includes busbar and structure design. This paper includes two major contributions. First, it presents a complete modular SSCB design procedure, showing parallel and cascade evolution process from a conduction unit to a tower structure. Second, this paper investigates the effect of stray resistances on SSCB efficiency and power loss. A medium-voltage SSCB prototype rated at 4 kV and 100 A is experimentally implemented. The 1 hour continuous conduction tests are conducted from 50 A to 100 A, the maximum steady-state case temperature is 59°C. The experimental results show a high efficiency of 99.96%.

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