Grid Connected Inverter Control by Two-Degree-of-Freedom Robust H∞ Repetitive

被引:0
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作者
Sriart, Worasak [1 ]
Boonto, Sudchai [1 ]
Lenwari, Wanchak [1 ]
Naetiladdanon, Sumate [2 ]
机构
[1] King Mongkuts Univ Technol, Dept Control Syst & Instrumentat Engn, Thonburi, Thailand
[2] King Mongkuts Univ Technol, Dept Elect Engn, Thonburi, Thailand
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents a robust control strategy for voltage controller of grid-connected inverter. The combining of feedforward control and H-infinity repetitive control is introduced to improve tracking performance and reduce periodic disturbance. The feedforward part of 2DOF controller extends gain and tracking bandwidth of the feedback controller when comparing to 1DOF controller. The proposed controller achieves the robust regulate voltage and tracking performance in dynamic responses. The controller is tested by simulation in MATLAB/SIMULINK. The results show the proposed controller obtains better performance under different scenarios (grid-connected mode and grid frequency variation).
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页数:6
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