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Detailed Multi-Domain Modeling and Faster-Than-Real-Time Hardware Emulation of Small Modular Reactor for EMT Studies
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- Author(s) / Creator(s)
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Small modular reactors (SMRs) are gaining significant attention as a promising solution to address the global energy demand and simulation is pivotal in expediting the construction of SMRs. However, the point-reactor neutron-kinetics equations of SMRs are strongly stiff nonlinear ordinary differential equations (ODEs), which poses a great difficulty for numerical computation of electromagnetic transients (EMT) of power systems coupled with SMRs. In this paper, a semi-analytical solution is proposed to streamline the comprehensive SMR mathematical model and reduce the model order from 25th to 18th. Additionally, the conglomeration of selected SMR-based EMT power system benchmark, which includes synchronous machines (SMs), modular
multilevel converters (MMCs), power distribution networks, and varying loads, is described in detail and implemented on the Xilinx® VCU 118 field-programmable gate array (FPGA) based hardware-in-the-loop (HIL) real-time transient emulation platform. The results demonstrate a significant improvement in computational speed and stability achieved by the proposed solution, which achieves a computational accuracy of IEEE 32- bit single-precision floating-point numbers, with a minimum calculation interval of 800ns, resulting in a remarkable 12.5-fold acceleration in faster-than-real-time (FTRT) performance. This advancement greatly facilitates the simulation of intricate SMR-based models for EMT studies. -
- Date created
- 2024-03-01
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- Type of Item
- Article (Published)