Improved Modeling of a Multi-Level Inverter for TACS to Reduce Computational Time and Improve Accuracy
Abstract
:1. Introduction
2. Configuration of TACS
3. Model of TACS
3.1. Mechanical Model
3.2. Electrical Model
4. Verification
4.1. Simulation Results
4.2. Experimental Results
5. Conclusions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Item | Value | Item | Value |
---|---|---|---|
Number of stage | 3 | Rated pressure | 8 bar |
Rated flow rate | 10,000 m3/h | Shaft speed | 3600 rpm |
Shaft power | 848.9 kW | Motor type | Induction motor |
Rated power of motor | 1050 kW | Rated power of inverter | 1500 KVA |
Operating speed range with VSD | 70~100% | Operating speed range with VSD and IGV | 40~100% |
Item | Value | Item | Value | ||
---|---|---|---|---|---|
Inverter | Input voltage | 6.6 KV | Motor | Rated voltage | 6.6 KV |
Topology | 11 level | No. of poles | 2 | ||
Switching frequency | 10 kHz | Rated speed | 3600 rpm | ||
Control method | V/F |
Point | Detailed | Conventional | Proposed |
---|---|---|---|
1 | 274 A | 371 A | 277 A |
2 | 205 A | 167 A | 203 A |
3 | 193 A | 218 A | 250 A |
4 | 207 A | 171 A | 205 A |
Item | Detailed | Conventional | Proposed |
---|---|---|---|
Computational time | 73 s | 7 s | 7 s |
Item | Experimental | Conventional | Proposed |
---|---|---|---|
Kilowatt hour | 767.7 kWh | 751.3 kWh | 764.5 kWh |
Computational time | 30 min | 14 min | 14 min |
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Kim, S.-A. Improved Modeling of a Multi-Level Inverter for TACS to Reduce Computational Time and Improve Accuracy. Energies 2021, 14, 849. https://doi.org/10.3390/en14040849
Kim S-A. Improved Modeling of a Multi-Level Inverter for TACS to Reduce Computational Time and Improve Accuracy. Energies. 2021; 14(4):849. https://doi.org/10.3390/en14040849
Chicago/Turabian StyleKim, Sung-An. 2021. "Improved Modeling of a Multi-Level Inverter for TACS to Reduce Computational Time and Improve Accuracy" Energies 14, no. 4: 849. https://doi.org/10.3390/en14040849