Issue |
E3S Web Conf.
Volume 261, 2021
2021 7th International Conference on Energy Materials and Environment Engineering (ICEMEE 2021)
|
|
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Article Number | 01026 | |
Number of page(s) | 5 | |
Section | Energy Development and Energy Storage Technology Research and Development | |
DOI | https://doi.org/10.1051/e3sconf/202126101026 | |
Published online | 21 May 2021 |
Study of start-up decoupling controller for modular multilevel converter
1
School of Electrical Engineering, Shanghai Dianji University, 201306 Shanghai, China
2
School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, 200240 Shanghai, China
* Corresponding author: zhangyc@sdju.edu.cn
Modular multilevel converters are widely used in power systems because of their significant advantages. In this paper, a dynamic mathematical model is established by analyzing the topology, operating principle and switching function of the modular multilevel converter, so as to construct an inner and outer loop decoupling controller in dq coordinates. The carrier phase-shift pulse-width modulation is selected to control the sub-module operation, and the uncontrolled pre-charging method is adopted to charge the sub-module. Finally, simulation experiments are carried out in MATLAB/Simulink, and the results show that the control method achieves smooth start-up of the modular multilevel converter.
© The Authors, published by EDP Sciences, 2021
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