NDLI: Distributed cooperative control method based on network topology optimisation in microgrid cluster

Content Provider	IET Digital Library
Author	Dou, Chunxia Li, Yuanzhe Yue, Dong Zhang, Zhanqiang Zhang, Bo
Abstract	When several microgrids are interconnected into microgrid cluster (MGC), the network topology of MGC system would be more complex. Traditional hierarchical control based on droop control tends to make full use of all networks so that the costs of energy exchange could be high. Considering the voltage stability and power sharing of MGC system, a distributed cooperative control method based on network topology optimisation for MGC is proposed to control the power flow of multi-microgrid system. Specially, preliminary Q-leaning algorithm is utilised with establishment of new adjacency matrices for the distributed cooperative control to decrease the costs. Moreover, multi-level controls based on consensus protocol are proposed in the distributed cooperative MGC system to eliminate the necessity of a central controller. The adaptive regulation based on the state of charge among the battery groups will be taken as the first-level control. The second-level control including the current controller, voltage controller and power controller is implemented among the DGs and a novel third-level control based on consensus is applied in eliminating the voltage deviation caused by the first-level control and the second-level control. The effectiveness of the proposed method is verified through the simulation by simulink.
Starting Page	939
Ending Page	947
Page Count	9
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 5, Apr (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0450
Journal	IET Renewable Power Generation
Publisher Date	2020-01-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Central Controller Combinatorial Mathematics Control of Electric Power System Current Control Current Controller Distributed Control Distributed Cooperative Control Distributed Cooperative MGC System Distributed Power Generation Droop Control Electric Current Control Load Flow Control MGC System Microgrid Cluster Multilevel Control Multimicrogrid System Multivariable Control System Network Theory (Graph) Network Topology Optimisation Optimisation Optimisation Technique Power And Energy Control Power Control Power Controller Power Engineering Computing Power Flow Control Power Sharing Power System Control Power System Simulation Power System Stability Q-leaning Algorithm Simulink Stability in Control Theory Topology Voltage Control Voltage Controller Voltage Stability
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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