A Review of Modular Multilevel Converters for Stationary Applications
Abstract
:1. Introduction
2. MMC Topologies
2.1. Submodule Topologies
2.1.1. Two-Level Submodule Topologies
2.1.2. Multilevel Submodule Topologies
2.2. Overall Topologies
3. Mathematical Modeling and Control of Three-Phase MMC
3.1. Mathematical Modeling
3.2. Output Voltage and Current Control
3.3. Submodule Balancing Control
3.4. Circulating Current Control
3.5. Nonlinear and Predictive Control
4. MMC Modulation Techniques
5. Power Losses and WBG Technology
6. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Performance Index | HBSM | FBSM | SCSM | NPCSM | FCSM | CDSM | HSM | CCSM |
---|---|---|---|---|---|---|---|---|
No. of sources | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
No. of transistors | 2 | 4 | 3 | 4 | 4 | 5 | 6 | 6 |
No. of diodes | 2 | 4 | 4 | 6 | 4 | 7 | 6 | 6 |
Max. voltage | 2 | 2 | 2 | 2 | 2 | |||
Bipolar operation | No | Yes | Yes | No | No | Yes | Yes | Yes |
DC fault blocking | No | Yes | Yes | No | No | Yes | Yes | Yes |
Power losses | Low | High | Low | Moderate | Low | Moderate | Moderate | Moderate |
Cost | Low | Moderate | Moderate | High | High | High | High | High |
Control complexity | Low | Low | Low | High | High | Low | Low | High |
PWM | Category | Switching Frequency | SM Count | Performance | Effort |
---|---|---|---|---|---|
PSC-PWM | HSF-PWM | 2000 Hz | Small/Large | High | Complex |
LSC-PWM | HSF-PWM | 2000 Hz | Small/Large | Moderate | Moderate |
SVM-PWM | LSF-PWM | 100 Hz 2000 Hz | Small | High | Complex |
SAM-PWM | LSF-PWM | 100 Hz 2000 Hz | Small/Large | Moderate | Easy |
NLM-PWM | LSF-PWM | 50/60 Hz | Large | Low | Easy |
SHE-PWM | LSF-PWM | 50/60 Hz | Small | High | Complex |
Parameters | Values |
---|---|
No. of submodules per leg | 5 |
Nominal SM voltage | 300 V |
DC-link voltage | 1500 V |
RMS grid voltage | 380 V |
Grid frequency | 50 Hz |
Nominal power level | 100 kW |
Modulation technique | PSC-PWM, PD-PWM, SAM-PWM |
Switching frequency rang | 20 kHz; 20–100 kHz |
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Wang, Y.; Aksoz, A.; Geury, T.; Ozturk, S.B.; Kivanc, O.C.; Hegazy, O. A Review of Modular Multilevel Converters for Stationary Applications. Appl. Sci. 2020, 10, 7719. https://doi.org/10.3390/app10217719
Wang Y, Aksoz A, Geury T, Ozturk SB, Kivanc OC, Hegazy O. A Review of Modular Multilevel Converters for Stationary Applications. Applied Sciences. 2020; 10(21):7719. https://doi.org/10.3390/app10217719
Chicago/Turabian StyleWang, Yang, Ahmet Aksoz, Thomas Geury, Salih Baris Ozturk, Omer Cihan Kivanc, and Omar Hegazy. 2020. "A Review of Modular Multilevel Converters for Stationary Applications" Applied Sciences 10, no. 21: 7719. https://doi.org/10.3390/app10217719