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In smart grid, the consensus-based economic dispatch algorithm is to allocate multiple generation units to meet expected demand, while minimizing the total generation cost in a distributed manner. Since the network-induced time delays ubiquitously exist in smart grid, the investigation of the effect of time delays on the dispatch performance is of both theoretical merit and practical value. In this...
Studies reveal that an integrated system of smart grid and cloud computing ecosystems can better attain the energy efficiency objectives, considering all the aspects. To facilitate the integration, in this paper, we introduce an agent-oriented economic middleware architecture (ARTA) to exchange pervasive energy and computing resources in different layers of the service provisioning platform, from...
The notion of Smart Grids entails the vision that energy grids handling one-way flows of energy evolve into Smart Grids dealing with multi-directional flows of energy and digital information. Numerous projects have already dealt with solving the resulting complexity and proposed several new, integrated approaches to delivering suitable information technology and operational technology solutions. However,...
Time-delay is ubiquitous in the underlying communication network of many industrial systems. In this paper, by taking communication time delays into account in a distributed consensus protocol designed to solve the optimization problem of power dispatch in a smart grid, we study how the distributed consensus strategy with communication time delays influences the optimization solution of the total...
The present work aims to solve the optimal economic dispatch problem for a class of smart grid in the presence of communication uncertainties via designing distributed adaptive consensus-based dispatch algorithm. Motivated by the fact that the total cost of smart grid will achieve its minimal value if the state consensus among incremental costs for all generating units can be ensured, a new kind of...
This paper studies economic power dispatch strategy in a smart grid by using the distributed consensus protocol in multi-agent systems, where there are many generation units working cooperatively under a local neighboring area to achieve a minimum solution for the optimization problem of the total cost function. At first, the analysis indicates that the total cost for generators in a smart grid can...
Distributed calculation of an economic dispatch can be used for efficient resource allocation in a power distribution system with local generation. The lossless dispatch can be implemented in a fully decentralized way, however, because the impact on real losses in a power distribution systems cannot be neglected, this kind of calculations might lead to suboptimal solutions. This work proposes a semi-decentralized...
The concept of Smart Distribution Grid (SDG) and the basic elements and the requirements for implementing SDGs are introduced in this paper. Given that Distribution Automation (DA) is the foundation of a SDG, the structure and communication of DA system is discussed in the paper as well. In order to achieve the interoperability and compatibility in realization of IEC60870-5-104 protocol in the Distribution...
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