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Technical Lecture

Thermal Management

T24.2 - FPGA-Based Hybrid Simulator for Real-Time 3-D Temperature Monitoring of Power Converters

Wednesday, March 19, 2025
1:50 PM – 2:10 PM ET
Location: Level Three, A316
This paper introduces an FPGA-based hybrid simulator for real-time 3-D temperature monitoring, designed as methodology for creating digital twins of power converters. Based on the Finite-Difference Time-Domain method, modelling from the physical layout, the software constructs a precise thermal digital replica with an error margin of less than 7 K. The FPGA solver accelerates the thermal simulations 50 to 200 times, providing the complete transient temperature in real-time and faster-than-real-time. A specially designed meshing technique is introduced to liberate the burden of computation and offer the flexibility of modelling. The simulator's fidelity and broad applicability are validated by monitoring the dynamic behaviour of transistors and thermal analysis of a complex three-phase LLC converter. The results illustrate the feasibility of the simulator for real time health management of power converters.