Self controlled induction motor drive with variable DC link voltage
Bibliographic record
Abstract
A system is proposed in which the voltage of the induction machine is controlled by variation of the DC-link voltage. Using variable DC-link voltage reduces the switching frequency of the inverter and the amplitude of the switched voltage. This reduces the inverter switching losses and the machine losses. Pulse width modulation (PWM) of the inverter is used only to lower the harmonics in motor torque and motor current. This results in a well-defined switching frequency of the inverter is used only to lower the harmonics in motor torque and motor current. This results in a well-defined switching frequency of the inverter and a simple strategy for the harmonic elimination. The PWM is switching only the reduced DC-link voltage, which is proportional to the machine voltage. Simulations show that the self-controlled induction machine with variable DC-link voltage behaves like a voltage controlled DC-machine. The implementation of a drive is described, and experimental results are presented to verify the feasibility of the proposed strategy.>
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".