PWM control of a dual inverter drive using an open-ended winding induction motor
Bibliographic record
Abstract
A dual pwm inverter drive operating an open-winding induction motor can be an attractive motor-drive system when operated from a dc battery source. Operating one of the inverters using a floating dc-link capacitor provides two main functions: reactive voltage support for the main bridge connected to the dc battery voltage source; voltage boosting to increase the motor terminal voltage. The latter feature eliminates the requirement to use a separate dc-dc converter to provide a voltage boost. The resultant drive system can provide several benefits such as: lowering the average battery current by operating the main bridge at unity power factor; improving the motor torque and efficiency over a wide operating speed range; compensation for battery voltage fluctuations; lowering the motor harmonic losses; elimination of common-mode circulating currents. This paper describes a pwm control scheme for the two inverters to regulate the floating bridge capacitor voltage over the entire dynamic speed range of the motor, whilst also providing the desired motor demand voltage. Experimental results are used to verify both the operation of the motor-drive system and the regulation of the floating capacitor voltage. Experimental results using an induction motor load confirm the practical feasibility of the motor-drive system.
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How this classification was reachedexpand
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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".