A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables

Prince Kumar; Abhijit Kshirsagar; Daniel Opila; Ned Mohan

doi:10.1109/PEDES.2018.8707812

A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables

Prince Kumar, Abhijit Kshirsagar, Daniel Opila, Ned Mohan

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

This paper presents a new pulse width modulation (PWM) technique for a high-frequency link Modular Multilevel Converter topology for grid-integrated renewables. The topology generates a multilevel output voltage with low harmonic distortion, increased reliability, and design flexibility due to the modular nature of the converter. A central full-bridge converter is connected to multiple High Frequency Link modules via high frequency transformers. Each module produces its own isolated DC voltage, and modules are inserted or bypassed to synthesize large AC voltages. The proposed PWM technique equalizes module utilization without increasing losses, and retains inherent capacitor voltage balancing. Simulation results using SIMULINK models show that the proposed modulation scheme results in better performance than conventional schemes such as level-shifted carrier PWM, phase-shifted carrier PWM, hybrid schemes or nearest-level modulation.

Original language	English (US)
Title of host publication	Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538693155
DOIs	https://doi.org/10.1109/PEDES.2018.8707812
State	Published - Jul 2 2018
Event	8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018 - Chennai, India Duration: Dec 18 2018 → Dec 21 2018

Publication series

Name	Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018

Conference

Conference	8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018
Country	India
City	Chennai
Period	12/18/18 → 12/21/18

Keywords

Full-Bridge Converter
Full-Bridge Rectifier
High Frequency Transformer
Modular Multilevel Converter
Pulse Width Modulation

UN SDGs

This output contributes to the following Sustainable Development Goal(s)

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10.1109/PEDES.2018.8707812

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Kumar, P., Kshirsagar, A., Opila, D., & Mohan, N. (2018). A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables. In Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018 [8707812] (Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDES.2018.8707812

A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables. / Kumar, Prince; Kshirsagar, Abhijit; Opila, Daniel; Mohan, Ned.

Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8707812 (Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kumar, P, Kshirsagar, A, Opila, D & Mohan, N 2018, A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables. in Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018., 8707812, Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018, Institute of Electrical and Electronics Engineers Inc., 8th IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018, Chennai, India, 12/18/18. https://doi.org/10.1109/PEDES.2018.8707812

Kumar P, Kshirsagar A, Opila D, Mohan N. A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables. In Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8707812. (Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018). https://doi.org/10.1109/PEDES.2018.8707812

Kumar, Prince ; Kshirsagar, Abhijit ; Opila, Daniel ; Mohan, Ned. / A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables. Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (Proceedings of 2018 IEEE International Conference on Power Electronics, Drives and Energy Systems, PEDES 2018).

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title = "A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables",

abstract = "This paper presents a new pulse width modulation (PWM) technique for a high-frequency link Modular Multilevel Converter topology for grid-integrated renewables. The topology generates a multilevel output voltage with low harmonic distortion, increased reliability, and design flexibility due to the modular nature of the converter. A central full-bridge converter is connected to multiple High Frequency Link modules via high frequency transformers. Each module produces its own isolated DC voltage, and modules are inserted or bypassed to synthesize large AC voltages. The proposed PWM technique equalizes module utilization without increasing losses, and retains inherent capacitor voltage balancing. Simulation results using SIMULINK models show that the proposed modulation scheme results in better performance than conventional schemes such as level-shifted carrier PWM, phase-shifted carrier PWM, hybrid schemes or nearest-level modulation.",

keywords = "Full-Bridge Converter, Full-Bridge Rectifier, High Frequency Transformer, Modular Multilevel Converter, Pulse Width Modulation",

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N2 - This paper presents a new pulse width modulation (PWM) technique for a high-frequency link Modular Multilevel Converter topology for grid-integrated renewables. The topology generates a multilevel output voltage with low harmonic distortion, increased reliability, and design flexibility due to the modular nature of the converter. A central full-bridge converter is connected to multiple High Frequency Link modules via high frequency transformers. Each module produces its own isolated DC voltage, and modules are inserted or bypassed to synthesize large AC voltages. The proposed PWM technique equalizes module utilization without increasing losses, and retains inherent capacitor voltage balancing. Simulation results using SIMULINK models show that the proposed modulation scheme results in better performance than conventional schemes such as level-shifted carrier PWM, phase-shifted carrier PWM, hybrid schemes or nearest-level modulation.

AB - This paper presents a new pulse width modulation (PWM) technique for a high-frequency link Modular Multilevel Converter topology for grid-integrated renewables. The topology generates a multilevel output voltage with low harmonic distortion, increased reliability, and design flexibility due to the modular nature of the converter. A central full-bridge converter is connected to multiple High Frequency Link modules via high frequency transformers. Each module produces its own isolated DC voltage, and modules are inserted or bypassed to synthesize large AC voltages. The proposed PWM technique equalizes module utilization without increasing losses, and retains inherent capacitor voltage balancing. Simulation results using SIMULINK models show that the proposed modulation scheme results in better performance than conventional schemes such as level-shifted carrier PWM, phase-shifted carrier PWM, hybrid schemes or nearest-level modulation.

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A Novel PWM Technique for MMCs with High Frequency Link and Natural Capacitor Balancing for Grid-Interfacing of Renewables

Abstract

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Keywords

UN SDGs

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