Sampling-based self-triggered coordination control for multi-agent systems with application to distributed generators |
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Authors: | Yuan Fan Chengxiao Zhang Cheng Song |
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Affiliation: | 1. School of Electrical Engineering and Automation, Anhui University, Hefei, People's Republic of Chinayuanf3@foxmail.com;3. School of Electrical Engineering and Automation, Anhui University, Hefei, People's Republic of China;4. School of Automation, Nanjing University of Science and Technology, Nanjing, People's Republic of China |
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Abstract: | This work investigates the coordination control problem for multiple distributed generation (DG) units with a hierarchical control structure. At the secondary control level, an event-triggered power sharing strategy based on the concept of multi-agent consensus has been proposed for the DG coordination control. Unlike existing consensus-based DG control approaches, the proposed control algorithm is based on sampled data. Thus the event triggering and controller updating actions can only be executed at the sampling time instants. To further reduce the amount of communication among DGs, the proposed event-triggered algorithm is extended to a self-triggered algorithm, where the inter-agent communication transmission is no longer required to be executed at each sampling time instant. The case study results show that the self-triggered algorithm can achieve nearly the same performance on DG coordination as that of the event-triggered algorithm, while significantly reduces the amount of communication. |
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Keywords: | Multi-agent coordination self-triggered control sampled data microgrid distributed generator |
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