This paper presents a distributed fault-tolerant finite-time control scheme for the secondary voltage and frequency restoration of islanded inverter-based Alternating Current (AC) Microgrids (MGs) considering input saturation and faults. Most existing distributed methods commonly design the secondary control layer based on ideal conditions of the control input channels of the MG without any faults and disturbances. At the same time, MGs are exposed to actuator faults that can significantly impact the control of MGs, and lead the MG in unstable situations. One of the other typical practical constraints in multi-agent systems such as MGs is saturation. The other novel idea is that a consensus-based scheme synchronizes the islanded MG’s voltage and frequency to their nominal values for all DGs within finite time, irrespective of saturation and multiple faults, including partial loss of effectiveness and stuck faults simultaneously. Finally, the performance of the proposed control schemes are verified by performing an offline digital time-domain simulation on a test MG system through a couple of scenarios in MATLAB/Simulink environment. The effectiveness and accuracy of the proposed control schemes for islanded AC MGs are compared to previous studies, illustrating the privilege of that.
Distributed Finite-Time Fault-Tolerant Control of Isolated AC Microgrids Considering Input Constraints
2022-11-01
Jamali , M , Reza Baghaee , H , Sadabadi , M S , B. Gharehpetian , G , Anvari-Moghaddam , A & Blaabjerg , F 2022 , ' Distributed Finite-Time Fault-Tolerant Control of Isolated AC Microgrids Considering Input Constraints ' , I E E E Transactions on Smart Grid , vol. 13 , no. 6 , 9814863 , pp. 4525-4537 . https://doi.org/10.1109/TSG.2022.3188199
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Voltage Control , Frequency control , Actuator faults , Distributed Control , finite-time , Microgrids , voltage and frequency synchronization , Actuators , Control systems , Synchronization , saturation , Fault tolerant systems , Frequency synchronization , /dk/atira/pure/sustainabledevelopmentgoals/partnerships , name=SDG 17 - Partnerships for the Goals , /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy , name=SDG 7 - Affordable and Clean Energy
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