NDLI: Distributed load shedding for microgrid with compensation support via wireless network

Content Provider	IET Digital Library
Author	Xu, Qimin Yang, Bo Chen, Cailian Lin, Feilong Guan, Xinping
Abstract	Due to the limited generation and finite inertia, microgrids suffer from a large frequency and voltage deviation which can lead to system collapse. Thus, a reliable load shedding method is required to maintain frequency stability. A wireless network, benefiting from the high flexibility and low deployment cost, is considered as a promising technology for fine-grained management. In this study, a distributed load shedding solution via a wireless network is proposed for balancing the supply–demand and reducing the load-shedding amount. Firstly, the real-power coordination of different priority loads is formulated as an optimisation problem. To solve this problem, a distributed load shedding algorithm based on sub-gradient method is developed for gradually shedding loads. Using this method, power compensation can be utilised and has more time to decrease the power deficit, consequently reducing the load-shedding amount. Secondly, a multicast metropolis schedule based on time-division multiple access is developed. In this protocol, time slots are dedicatedly allocated to increase the response rate. A checking and retransmission mechanism is utilised to enhance the reliability of our method. Finally, the proposed solution is evaluated by using an NS3-Matlab co-simulator. The numerical results demonstrate the feasibility and effectiveness of our solution.
Starting Page	2006
Ending Page	2018
Page Count	13
ISSN	17518687
Volume Number	12
e-ISSN	17518695
Issue Number	Issue 9, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/12/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.1029
Journal	IET Generation, Transmission & Distribution
Publisher Date	2018-01-15
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Compensation Support Distributed Load Shedding Distributed Power Generation Fine-grained Management Frequency Stability Gradient Method Interpolation And Function Approximation Load Shedding Load-shedding Amount Reduction Microgrid System Multicast Communication Multicast Metropolis Scheduling Multiple Access Communication NS3-MATLAB Cosimulator Numerical Analysis Optimisation Optimisation Problem Optimisation Technique Power Compensation Power System Economics Power System Managemen Power System Management Power System Operation Radio Link And Equipment Radio Network Real-power Coordination Subgradient Method Supply And Demand Supply–demand Balancing System Collapse Telecommunication Scheduling Time Division Multiple Access Wireless Network
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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