A Method for Supply Voltage Boosting in an Open-Ended Induction Machine Using a Dual Inverter System With a Floating Capacitor Bridge
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- Meta-epidemiology (narrow)
- Consensus categories
- none
- Domain
- Candidate signal: noneConsensus signal: none
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- Candidate signal: Simulation or modelingConsensus signal: none
- Genre
- Candidate signal: EmpiricalConsensus signal: none
- Teacher disagreement score
- 0.832
- Threshold uncertainty score
- 1.000
- Validation status
machine_predicted_unvalidated·codex-gemma-dda1882f352a
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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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- Teacher spread
- 0.244 · how far apart the two teachers sit on this one work
- Validation status
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
Abstract
An operational approach to an induction machine is presented that uses an open winding connected to a dual inverter system. A floating capacitor inverter bridge boosts the fundamental voltage available to the machine and arbitrarily sets the operating power factor of the main inverter bridge connected to the dc battery power source. During operation, the motor current charges the floating bridge dc capacitor voltage to a naturally stable dc voltage level and the ac voltage delivered to the machine is the resultant sum of the two inverter bridge voltages. Machine voltage boosting is then achieved by adjusting the fundamental phase angle difference between the two inverters to control the charge stored in the floating bridge capacitors. With the floating bridge providing reactive voltage support and therefore boosting the available supply voltage to the induction machine, there are two main outcomes: minimization of the supply current required for operation beyond the base speed of the electric machine, and supply voltage regulation of the drive system. Experimental results are used to verify the operation of the floating bridge arrangement by examining the load power factor angle and the phase difference between the two bridges. Results are presented for a passive RL load to illustrate the supply current reduction at high fundamental frequency operation, and a modified 2-hp, 1800-r/min induction to illustrate the dc voltage supply droop compensation.
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The record
- Venue
- IEEE Transactions on Power Electronics
- Topic
- Multilevel Inverters and Converters
- Field
- Engineering
- Canadian institutions
- University of Alberta
- Funders
- not available
- Keywords
- InverterVoltageEngineeringVoltage droopCapacitorPower factorElectrical engineeringAC powerDecoupling capacitorControl theory (sociology)Computer scienceVoltage regulator
- Has abstract in OpenAlex
- yes