Transient Time-delay Stability Analysis of the Distributed Coordination in AC Microgrids

Dong, Chaoyu; Li, Dongdong; Zhang, Zhe; Wang, Yu; Xiao, Qian; Jin, Chi; Jia, Hongjie; Wang, Peng

doi:10.1109/ifeec47410.2019.9015174

Cited by 1 publication

(2 citation statements)

References 5 publications

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“…In the islanded MGs, transmission of the data related to the frequency deviation from the islanded MG sensors to the MGCC and the control signals from the MGCC to the DEG unit is accomplished through the communication networks, which in turn leads to the communication delays. The major effect of considering the communication networks is that the control task with the time delays will degrade the islanded MG performance and even endanger the islanded MG stability [1,[24][25][26]. The CPS methods have emerged as a new replacement for modeling and control of such systems [1,38].…”

Section: Cyber-physical Model Of the Islanded Mgmentioning

confidence: 99%

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Time delay margin for islanded microgrid with parameter uncertainty using fractional order proportional‐integral‐derivative controller

Beheshti

Khosravi

2023

Asian Journal of Control

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In this article, an islanded microgrid (MG) consisting of the diesel generator (DEG), the photovoltaic panel (PV), the wind turbine generator (WTG), the battery energy storage system (BESS), and the control unit is considered. In the islanded MGs, the control signals are exchanged on the open communication network, which results in the time delays in the input and the output of the islanded MG central controller (MGCC). The time delay has a destructive effect on the islanded MG stability. Thus, finding the maximum allowable time delay bound (MADB) is a significant issue. Since it is shown that the fractional order systems have larger stability region and more robustness rather than the corresponding integer order systems, in this research, we propose the fractional order proportional‐integral‐derivative (FOPID) controller as the MGCC to achieve a larger MADB value. As another innovation, in this article, a method is presented in which the MADB of the islanded MG system is determined considering the parametric uncertainties related to the damping coefficient (D) and the inertia constant (H). It is shown that the percentage improvement in the MADB of the uncertain MG system with the designed FOPID controller over the integer order proportional‐integral‐derivative (IOPID) controller is 9.64%. The accuracy of the proposed method is verified by simulation results in Matlab.

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Section: Cyber-physical Model Of the Islanded Mgmentioning

confidence: 99%

“…[2,22,23]. The stability of LFC in the presence of the time delay is a major challenge: The time delay affects the islanded MG performance and even endanger the system stability [24][25][26]. To investigate the time delay impacts, an index of maximum allowable time delay bound (MADB) is defined.…”

Section: Introductionmentioning

confidence: 99%

Time delay margin for islanded microgrid with parameter uncertainty using fractional order proportional‐integral‐derivative controller

Beheshti

Khosravi

2023

Asian Journal of Control

View full text Add to dashboard Cite

show abstract

Transient Time-delay Stability Analysis of the Distributed Coordination in AC Microgrids

Cited by 1 publication

References 5 publications

Time delay margin for islanded microgrid with parameter uncertainty using fractional order proportional‐integral‐derivative controller

Time delay margin for islanded microgrid with parameter uncertainty using fractional order proportional‐integral‐derivative controller

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