Cascaded H-Bridge Multilevel Converter Applied to a Wind Energy Conversion System with Open-End Winding
Abstract
:1. Introduction
2. System Description
2.1. Wind Energy Conversion System
2.2. Generator
2.3. Multilevel Converter and Electric Machines with Open-End Windings
3. Proposed System
3.1. Modulation Strategy
3.2. Control Strategies
4. Results and Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Abbreviations
CHB | Cascaded H-Bridge |
FC | Flying Capacitor |
GSC | Grid-side Converter |
MSC | Machine-side Converter |
NPC | Neutral Point Clamped |
OEW | Open-end Winding |
SCIM | Squirrel-Cage Induction Machine |
WECS | Wind Energy Conversion System |
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Switching States | Output Voltage (Phase A) | |||
---|---|---|---|---|
1 | 0 | 1 | 0 | |
0 | 0 | 1 | 0 | |
1 | 0 | 0 | 0 | |
1 | 0 | 1 | 1 | |
1 | 1 | 1 | 0 | |
0 | 0 | 0 | 0 | 0 |
0 | 0 | 1 | 1 | |
0 | 1 | 1 | 0 | |
1 | 0 | 0 | 1 | |
1 | 1 | 0 | 0 | |
1 | 1 | 1 | 1 | |
0 | 0 | 0 | 1 | |
0 | 1 | 0 | 0 | |
0 | 1 | 1 | 1 | |
1 | 1 | 0 | 1 | |
0 | 1 | 0 | 1 |
Multilevel Converter | Advantages | Disadvantage |
---|---|---|
NPC | ||
FC |
| |
CHB |
Parameter | Value |
---|---|
Rated output power | 1677 kW |
Nominal line stator voltage | 2300 V(rms) |
Nominal stator current | 421.2 A(rms) |
Nominal Frequency | 60 Hz |
Nominal rotor speed | 1786 rpm |
Number of poles pairs | 2 |
Rated mechanical torque | 8.9 kNm |
Stator winding resistance, | 29 m |
Rotor winding resistance, | 22 m |
Stator leakage reactance, | 0.226 m |
Rotor leakage reactance, | 0.226 m |
Magnetization reactance, | 13.04 m |
Moment of inertia | 63.87 kgm |
Nominal line grid voltage | 1150 V(rms) |
Nominal grid frequency | 60 Hz |
DC-link Voltage | 2100 V |
DC-link Capacitance | 12 mF |
Switching frequency (MSC and GSC) | 5 kHz |
Converter side inductor, | 6.3 mH |
Converter side resistor, | 23.8 m |
Grid side inductor, | 0.63 mH |
Grid side resistor, | 23.8 m |
Parallel capacitor, C | 10.03 |
Damping resistor, | 2.52 m |
Description | Time |
---|---|
Start of simulation | 0.0 s |
Machine magnetization start at | 1.2 s |
Machine acceleration starts at | 1.8 s |
Machine reaches the rated speed at | 5.0 s |
Reduce equivalent to in machine torque at | 8.3 s |
Increase of approximately in machine torque at | 11.3 s |
Reactive power injection at | 13.0 s |
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Share and Cite
Bettoni, S.d.S.; Ramos, H.d.O.; Matos, F.F.; Mendes, V.F. Cascaded H-Bridge Multilevel Converter Applied to a Wind Energy Conversion System with Open-End Winding. Wind 2023, 3, 232-252. https://doi.org/10.3390/wind3020014
Bettoni SdS, Ramos HdO, Matos FF, Mendes VF. Cascaded H-Bridge Multilevel Converter Applied to a Wind Energy Conversion System with Open-End Winding. Wind. 2023; 3(2):232-252. https://doi.org/10.3390/wind3020014
Chicago/Turabian StyleBettoni, Samuel dos Santos, Herbert de Oliveira Ramos, Frederico F. Matos, and Victor Flores Mendes. 2023. "Cascaded H-Bridge Multilevel Converter Applied to a Wind Energy Conversion System with Open-End Winding" Wind 3, no. 2: 232-252. https://doi.org/10.3390/wind3020014