Sliding Mode Observer-Based Fault-Tolerant Secondary Control of Microgrids

Electronics

JosephChang Lun Chan¹  TaeH. Lee¹ 

[1] Division of Electronic Engineering, Jeonbuk National University, 567 Baekje-daero, Jeonju 54896, Korea;

关键词: microgrids;    secondary control;    fault reconstruction;    fault-tolerant control;    sliding mode observers;   

DOI  :  10.3390/electronics9091417

来源: DOAJ

【 摘 要 】

This paper proposes two sliding mode observer (SMO)-based fault-tolerant secondary control schemes for microgrids. The first scheme consists of a central SMO-based fault tolerant controller that uses outputs from the microgrid and estimates all states in the microgrid as well as the fault. The estimated fault is then used to reject the effect of faults on the microgrid. The second scheme is decentralised, where each distributed generator (DG) has its own SMO-based fault tolerant controller which would estimate faults affecting that DG alone, and compensate for faults in only that DG. By rejecting the effect of faults in each DG, the effect of faults on the entire microgrid can be negated. Finally, we simulate an example using both schemes, and its results verify the efficacy of the schemes for fault-tolerant secondary control of microgrids.

【 授权许可】

Unknown