SiC-MOSFET-Based High Voltage Pulse Generator for Testing Motor Insulation Used in EVs
Why this work is in the frame
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Bibliographic record
Abstract
The use of wide-bandgap (WBG) power semiconductor devices in the transportation electrification area is gaining increased interest due to high power density, low power losses, high switching frequencies, and high operating temperatures. In specific, power electronics-based converters play a crucial role in driving the motors employed in the transportation area. However, concerns arise regarding motor insulation when employing WBG switching devices due to their fast rise time and high-frequency characteristics. These characteristics can place significant stress on the motor insulation, potentially causing premature failures. As such it is essential to investigate motor insulation under the operation of WBG-based power converters. In this work, a high voltage (HV) pulse generator is developed specifically for studying the motor insulation of electric vehicles (EVs). The proposed system incorporates a converter based on SiC-MOSFETs, offering flexibilities with pulse amplitude, frequency, duty cycle, rise time, overshoot, and waveshape. The design and functionality of the proposed generator are evaluated through both MATLAB Simulink simulations and experimental results.
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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 | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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