| Citation:Jinmu Lai,Xin Yin,Xianggen Yin,Jiaxuan Hu,Fan Xiao.Typology and working mechanism of a hybrid power router based on power-frequency transformer electromagnetic coupling with converters[J].Protection and Control of Modern Power Systems,2023,V8(3):679-695[Copy] |
|
| Abstract: |
| The power router (PR) is a promising piece of equipment for realizing multi-voltage level interconnection and fexible power control in the future distribution power grid. In this paper, a hybrid PR (HPR) topology based on power-frequency transformer electromagnetic coupling with converters is proposed for the medium distribution power grid. The power-frequency transformer is used to undertake power transmission, voltage conversion, and other main tasks, while the power electronic converters are combined to achieve active control. Equivalent magnetic and electrical circuit models are established to help discuss the operating principle of the proposed HPR. Additionally, the power fow and control principle of the HPR in diferent operating conditions are analyzed, with the control system design
scheme presented. The theoretical analysis results are verifed by MATLAB/Simulink+Plecs simulation and a controller hardware-in-the-loop study, as well as a down-scale experimental test, indicating that the proposed HPR is fexible in active voltage support and current control. |
| Key words: Power router, Power-frequency transformer, Power electronic converter, Hybrid, Working mechanism |
| DOI：10.1186/s41601-023-00316-8 |
|
| Fund:This work was supported in part by the National Natural Science Foundation of China (Grant No. 52007010) and in part by State Key Laboratory of Advanced Electromagnetic Engineering and Technology (Grant No. AEET 2022KF003) |
|
