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Content Provider | IET Digital Library |
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Author | Li, Zhongwen Cheng, Zhiping Xu, Yali Wang, Yifan Liang, Jing Gao, Jinfeng |
Abstract | Here, a distributed hierarchical control strategy is proposed for the parallel operating of voltage source inverters (VSIs) in AC microgrids (MGs). For the output voltage control of a VSI, conventional double-loop proportional-integral (PI) control method has deteriorative performance under disturbance parameters conditions and has a narrow range of stable operation. Here, the sliding mode control (SMC)-based inner-loop current control (level0) and mixed H 2/H ∞-based outer-loop voltage control (level1) are proposed for the output voltage control of a VSI, which combines the advantages of robustness and fast transient response. The droop control (level2) is applied to avoid circulating currents among the VSIs without using any critical communication between them. The multi-agent system (MAS)-based distributed economic automatic generation control (EAGC) and distributed automatic voltage control (AVC) (level3) are proposed to restore the voltage magnitude and frequency deviations caused by droop controller and achieve optimal active power dispatch at the same time. |
Starting Page | 1149 |
Ending Page | 1152 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 16, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8620 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2018-10-23 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | AC Microgrid Circulating Current Avoidance Control Control of Electric Power System Control System Analysis Control System Synthesis Current Control Distributed Automatic Voltage Control Distributed Control Distributed Hierarchical Control Strategy Distributed Power Generation Double-loop Proportional-integral Control Method Droop Controller Electric Current Control Fast Transient Response Frequency Deviations Hierarchical System H∞ Control Invertors MAS-based EAGC Mixed H2-H∞-based Outer-loop Voltage Control Multi-agent System Multiagent System-based Distributed Economic Automatic Generation Control Multivariable Control System Optimal Active Power Dispatch Optimal Control Optimisation Technique Parallel Voltage Source Inverter PI Control Power Generation Control Power System Control Sliding Mode Control-based Inner-loop Current Control Synthesis Method Transient Response Variable Structure System Voltage Control Voltage Magnitude Voltage-source Converter VSIs |
Content Type | Text |
Resource Type | Article |
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