Distributed Event-Triggered Scheme for Economic Dispatch in Smart Grids

By Chaojie Li, Xinghuo Yu, Wenwu Yu, Tingwen Huang, Zhiwei Liu. IEEE Transactions on Industrial Informatics, 2016

334 citations recorded by the source corpus.

To reduce information exchange requirements in smart grids, an event-triggered communication-based distributed optimization is proposed for economic dispatch. In this work, the θ-logarithmic barrier-based method is employed to reformulate the economic dispatch problem, and the consensus-based approach is considered for developing fully distributed technology-enabled algorithms. Specifically, a novel distributed algorithm utilizes the minimum connected dominating set (CDS), which efficiently allocates the task of balancing supply and demand for the entire power network at the beginning of economic dispatch. Further, an event-triggered communication-based method for the incremental cost of each generator is able to reach a consensus, coinciding with the global optimality of the objective function. In addition, a fast gradient-based distributed optimization method is also designed to accelerate the convergence rate of the event-triggered distributed optimization. Simulations based on the IEEE 57-bus test system demonstrate the effectiveness and good performance of proposed algorithms.

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/2a43d3905699927ace64e880fe9ba8a730e14be1

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Citations in the corpus

An Overview and Deep Investigation on Sampled-Data-Based Event-Triggered Control and Filtering for Networked Systems (2017, methodology): “2) In [86], an event-triggered transmission optimal scheme is employed for economic dispatch to reduce information exchange requirements in smart grids, which provides a safety technique that all the generators are running below their capacity with lower communication requirements.”
A survey of distributed optimization (2019, background): “The authors of Li, Yu, Yu, Huang, and Liu (2016) ﬁrst developed a distributed DER coordination algorithm based on θ - logarithmic barrier-based method and then equipped it with an event-triggered communication scheme.”
An Overview of Recent Advances in Event-Triggered Consensus of Multiagent Systems (2018, neutral): “Considering limited bandwidth of communication network, distributed event-triggered communication schemes are introduced in [14], [121], and [122] to achieve power sharing in microgrids.”