Real-Time Simulation of Permanent Magnet Motor Drive on FPGA Chip for High-Bandwidth Controller Tests and Validation
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Bibliographic record
Abstract
This paper presents a real-time simulator of a permanent magnet synchronous motor (PMSM) drive implemented on an FPGA card. Real-time simulation of PMSM drives enables rapid deployment and thorough testing of efficient control strategies for vehicular or industrial applications. The PMSM model is based on Park transform with a reference frame on the rotor and assumes sinusoidal flux induction. The PMSM machine in driven by a 3-phase IGBT inverter. Both models are implemented in RT-LAB using a Simulink blockset called Xilinx System Generator (XSG), without any VHDL coding. The paper explains various aspects of the design of the motor drive models in fixed-point representation in XSG, as well as actual simulation validations against a standard PMSM drive model built in Simulink. The PMSM drive is coded along with a test PWM source, built-in the FPGA, with user selectable dead-time, modulation index, source angle offset and frequency. The overall model compilation and simulation is made entirely automatic under the RT-LAB real-time simulation platform. The drive can also run in closed loop with a controller executed on a CPU of the real-time simulator. The final PMSM drive model runs with a 20 ns integration time step, allows for time multiplexing of d-q values and has an input-output latency of 310 ns (250 ns for the PMSM machine alone). The drive is directly connected to RT-LAB digital input and analog outputs (1 microsecond settling time) on the FPGA card and has a resulting total HIL latency of 1.31 microseconds
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it