Multi-source dynamic coordinated control strategy for DC microgrid based on fuzzy control

被引：0
|
作者：
Han Yunhao [1 ]
Si, Yu [1 ]
Yang, Mi [1 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai, Peoples R China
来源：
2018 2ND IEEE CONFERENCE ON ENERGY INTERNET AND ENERGY SYSTEM INTEGRATION (EI2) | 2018年
关键词：
DC microgrid; multi-source coordinated control; distributed hierarchical structure; fuzzy control; DISTRIBUTED CONTROL;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The DC microgrid can provides an effective solution for integration of various loads, distributed generations(DGs),and distributed storages. With the expansion of DC microgrid capacity, coordinated control between multiple distributed generations has become a research hotspot. The conventional droop control has low accuracy of load current sharing due to the inconsistent parameters in the DC microgrid. To solve this problem, based on the fuzzy algorithm, this paper designs a distributed hierarchical control structure of DC microgrid, and sets corresponding control strategies at each layer to achieve multi-source dynamic coordination. Firstly, the influence of line resistance on load current sharing is analyzed in detail. Then, the fuzzy controller is designed to dynamically change the virtual resistance. Finally, the secondary compensation control is used to eliminate bus voltage deviation. The simulation model is built by Matlab/Simulink and the simulation results verify the effectiveness of the designed control strategy
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页数：6
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