| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 06013 | |
| Number of page(s) | 6 | |
| Section | Electrical and Power Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016506013 | |
| Published online | 01 May 2020 | |
A New Dynamic Voltage Restorer with Multi-level Open-end Winding Topology
1 Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100044, China
2 China Energy Engineering Group Jiangsu Power Design Institute Co., LTD, Nanjing 211102, China
* Corresponding author: yinjingyuan@mail.iee.ac.cn
In this paper, a variety of main circuit structures of DVR based on open-end winding are presented. Two inverters are connected in series to realize the multi-level structure and simplify the hardware cost. According to the mathematical model of open-end DVR, a three loop control strategy based on load voltage feedback is implemented to suppress the resonance of LCL filter. Aiming at the common mode voltage problem of open-end winding DVR, a common mode voltage suppression strategy based SVPWM is proposed to completely suppress the common mode voltage of high frequency and low frequency of the system. Finally, an open-end DVR experimental platform is built to verify the effectiveness of the control strategy and modulation strategy.
© The Authors, published by EDP Sciences, 2020
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