Low-Switching Frequency Modulation Schemes for Multi-Level Inverters

ISBN-13: 9780367512903 / Angielski / Twarda / 2020 / 106 str.

A. Rakesh Kumar; T. Deepa; Sanjeevikumar Padmanaban

Opis

This book provides various low-switching frequency modulation schemes (conventional/improved), which can be implemented on Multi-level Inverters (MLIs). These schemes are implemented to three different MLI topologies to demonstrate their working and advantages. Simulations are carried out using MATLAB®/Simulink along with hardware experiments.

Spis treści

1 Introduction
1.1 Classical Multilevel Inverter (C-MLI) Topologies
1.1.1 Diode-Clamped MLI
1.1.2 Flying Capacitor MLI
1.1.3 H-Bridge MLI
1.2 Modular Multilevel Converters
1.2.1 Introduction to Topology
1.2.2 Applications of MMC

2 Low Switching Frequency Modulation Schemes
2.1 High Switching Frequency (HSF) Modulation Schemes
2.2 Low Switching Frequency (LSF) Modulation Schemes
2.3 Advantages of LSF over HSF Modulation Scheme
2.4 Advantages of Nearest Level Modulation Scheme over other
LSF Modulation Scheme
2.5 Concept of Modified Nearest Level Modulation Scheme
(mNLM)

3 Implementation of LSF Modulation Schemes on Cross-
Connected Sources based MLI
3.1 Cross-Connected Sources based MLI Topology
3.2 Working Principle of CCS-MLI Topology
3.2.1 Symmetric Con guration
3.2.2 Asymmetric Con gurations
3.3 Simulation Results
3.3.1 Single Phase Symmetric Con guration
3.3.2 Single Phase Asymmetric Con gurations
3.3.3 Three Phase Symmetric Con guration
3.4 Experimental Results
3.4.1 Single Phase Symmetric Con guration
3.4.2 Single Phase Asymmetric Con gurations
3.5 Conclusion

4 Implementation of LSF Modulation Schemes on Cascaded H-
Bridge MLI
4.1 Cascaded H-Bridge MLI Topology
4.2 Working Principle of CHBI Topology
4.2.1 Symmetric Con guration
4.2.2 Asymmetric Con gurations
4.3 Simulation Results
4.3.1 Single-phase Symmetric Con guration
4.3.2 Single-phase Asymmetric Con gurations
4.3.3 Three Phase Symmetric Con guration
4.4 Experimental Results
4.4.1 Single-phase Symmetric Con guration
4.4.2 Single-phase Asymmetric Con gurations
4.5 Conclusion

5 Implementation of LSF Modulation Schemes on Multilevel
DC-Link Inverter
5.1 Multilevel DC-Link Inverter Topology
5.2 Working Principle of MLDCLI
5.2.1 Symmetric Con guration
5.2.2 Asymmetric Con gurations
5.3 Simulation Results
5.3.1 Single-phase Symmetric Con guration
5.3.2 Single-phase Asymmetric Con gurations
5.3.3 Three-phase Symmetric Con guration
5.4 Experimental Results
5.4.1 Single-phase Symmetric Con guration
5.4.2 Single-phase Asymmetric Con gurations
5.5 Conclusion

6 Practical Implementation of MLIs in Power Conversion
6.1 MLI applications to Renewable Energy Sources (RES)
6.2 MLI applications in Electric Vehicles (EVs)
6.3 Future Scope of LSF Modulation Schemes for RES and EV
applications

Bibliography

Appendices
Appendix A Firing Angles for the EPM Scheme
Appendix B Firing Angles for the HEPM Scheme
Appendix C Firing Angles for the SHE Scheme
Appendix D Firing Angles for the NLM Scheme
Appendix E Firing Angles for the mNLM Schemes