Imperial College London
Portrait Picture

Professor Tim Green, FREng

Faculty of Engineering, Department of Electrical and Electronic Engineering

Academic Leader for Sustainability, Professor
 
 
 
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Contact

 

+44 (0)20 7594 6171t.green Website CV

 
 
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Location

 

1107EElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fan:2023:10.1109/TIE.2022.3224157,
author = {Fan, S and Xiang, X and Li, C and Gu, Y and Yang, H and Li, W and He, X and Green, T},
doi = {10.1109/TIE.2022.3224157},
journal = {IEEE Transactions on Industrial Electronics},
pages = {10134--10145},
title = {Coprime polynomial based dual-circulant modulation for inherent submodule voltage balancing in MMDC},
url = {http://dx.doi.org/10.1109/TIE.2022.3224157},
volume = {70},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The modular multilevel dc-dc converters (MMDCs) have attracted much interest in medium voltage dc applications, but have to face the main issue of balancing submodule (SM) capacitor voltages. This paper proposes a dual-circulant modulation and proves it possessing the inherent balancing capability for arbitrary operation cases. High-speed communication for real-time sensor data transfer could be avoided, which reduces implementation costs and also enhances the system reliability. Two sets of circular switching patterns are preset and combined to complete the full constrains on SM voltages. The associated polynomial of circulant matrix is introduced and the coprime of polynomials demonstrates the full-rank feature of the extended switching matrix that promises the inherent balancing for any operation cases. Then the switching patterns are reallocated and optimized to keep the SM uniformity and reduce the capacitor voltage ripple at the same time. Full-scale simulations on MMDC models and down-scaled experiments on prototypes are both presented, which validates the inherent voltage balancing capability and the optimization of SM capacitor voltage ripple with the proposed dual-circulant modulation.
AU  - Fan,S
AU  - Xiang,X
AU  - Li,C
AU  - Gu,Y
AU  - Yang,H
AU  - Li,W
AU  - He,X
AU  - Green,T
DO  - 10.1109/TIE.2022.3224157
EP  - 10145
PY  - 2023///
SN  - 0278-0046
SP  - 10134
TI  - Coprime polynomial based dual-circulant modulation for inherent submodule voltage balancing in MMDC
T2  - IEEE Transactions on Industrial Electronics
UR  - http://dx.doi.org/10.1109/TIE.2022.3224157
UR  - http://hdl.handle.net/10044/1/101717
VL  - 70
ER  -
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