An Average Consensus Algorithm for Seamless Synchronization of Andronov-Hopf Oscillator Based Multi-Bus Microgrids
IEEE Access, vol. 9, pp. 90441–90454
Abstract
This study proposes a hierarchical control structure for a smooth transition of multi-bus microgrids from islanded mode to grid-connected mode. The proposed control structure uses an average consensus protocol for the secondary control layer and Andronov-Hopf virtual oscillator control as a primary controller. The proposed method enhances the power-sharing accuracy among DGs in normal operation. A synchronization strategy is embedded into the secondary control layer in synchronization mode to force the MG-side voltage at the connection point to synchronize with the grid-side voltage. The influence of the secondary controller and communication time-delay on system stability and performance is analyzed with small-signal analysis. The proposed method is validated via control-hardware-in-the-loop (CHiL) using a real-time Opal-RT platform.
Authors 5
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Affiliation as printed
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Thai Nguyen University of Technology · RWTH Aachen University
Affiliation as printed
Faculty of International Training, Thai Nguyen University of Technology, Thai Nguyen, Vietnam
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Affiliation as printed
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Budapest University of Technology and Economics · RWTH Aachen University
Affiliation as printed
Budapest University of Technology and Economics, Budapest, Hungary
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Affiliation as printed
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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References 17
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