Power Hardware-in-the-Loop Simulation to Verify Protection Coordination for DC Microgrid
2023 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC(2023)
Abstract
In this work, power hardware-in-the-loop (PHIL) simulation was used to explore the protection coordination of solid-state-circuit-breakers (SSCB) with conventional mechanical circuit-breakers (CB) within a DC microgrid. The system of interest (SOD includes diesel generators, AC loads, DC loads, power converters and battery-based and ultra-capacitor-based energy storage. The system also includes a mix of current-limiting converters and passive sources of fault current contribution. Using PHIL simulation, the generators, loads, power converters, and the developed circuit-protection-control were simulated on a real-time simulator and interfaced to the hardware-of-interest (HOD which included developed SSCBs and CBs. Multiple experiments were executed to explore the operation of fast-acting SSCBs in conjunction with conventional switchboard-oriented protection in a system.
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Key words
Power Hardware-in-the-Loop Simulation, Real-Time-Simulation, DC distribution system, Microgrid, Solid-State-Circuit Breaker, Protection Coordination
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