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Title
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An Instantaneous Event-Triggered Hz-Watt Control for Microgrids
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Type
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JournalPaper
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Keywords
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Frequency control , Voltage control , Mathematical model , Microgrids , Power system stability , Reactive power ,Stability analysis
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Abstract
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This paper proposes a distributed control scheme to compensate for droop-induced frequency deviations in autonomous microgrids. In this scheme, no extra direct frequency control and proportional-integral compensation are employed to remove the frequency deviations; that is, the deviations are compensated instantaneously. To reduce the communication burden, the scheme is then equipped with a need-based (event-triggered) data exchange strategy. An event-triggering mechanism is introduced, which highly reduces the amount of communications in both transient and steady-state stages and ensures that the intervals between consecutive communication instants are positive (i.e., the system is Zeno-free). Stability and equilibrium analyses of the resultant system considering the whole system dynamics are provided, as well. Effectiveness of the proposed controller for different cases is verified by simulating a microgrid in MATLAB/SimPowerSystems software environment.
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Researchers
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Tomislav Dragicevic (Fourth Researcher), Mohammad Mehdi Arefi (Third Researcher), Qobad Shafiee (Second Researcher), Babak Abdolmaleki (First Researcher)
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