With the proliferation of power electronics, DC-based power distribution systems can be realized; however, DC electrical protection remains a significant barrier to mass implementation DC power distribution. Controller Hardware-in-the-loop (CHiL) simulation enables moving up technology readiness levels (TRL) quickly. This work presents an end-to-end solution for DC protection CHiL for early design exploration and verification for DC protection, allowing for the rapid development of DC protection schemes for both Line-to-Line (LL) and Line-to-Ground (LG) faults. The approach combines using Latency Based Linear Multistep Compound (LB-LMC), a real-time simulation method for power electronic, and National Instruments (NI) FPGA hardware to enable DC protection design with CHiL. A case study is performed for a 1.5 MW Voltage Source Rectifier (VSR) under LL and LG faults in an ungrounded system. The deficiency in real-time simulation resolution of Commercial-off-the-Shelf (COTS) for DC fault transients is shown, and addressed by using LB-LMC RT solver inside NI FPGA hardware to achieve 50 ns resolution of DC fault transients.
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|Advisor:||Cuzner, Robert M.|
|Commitee:||Armstrong, Brian S. R., Zhao, Tian|
|School:||The University of Wisconsin - Milwaukee|
|School Location:||United States -- Wisconsin|
|Source:||MAI 81/12(E), Masters Abstracts International|
|Keywords:||Controller hardware-in-the-loop, DC protection, Fault protection, Hardware-in-the-loop, Power electronics, Real-time simulation|
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