This paper studies the economic dispatch problem (EDP) of distributed generators for smart grids. Aiming at the problem that synchronous communication is difficult to realize in multi-agent based economic dispatch, a ...
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ISBN:
(数字)9781728176871
ISBN:
(纸本)9781728176888
This paper studies the economic dispatch problem (EDP) of distributed generators for smart grids. Aiming at the problem that synchronous communication is difficult to realize in multi-agent based economic dispatch, a broadcast gossip-based economic dispatch algorithm is proposed. Different from the traditional gossip EDP algorithm, broadcast gossip EDP algorithm enables all neighbors of a node to update information at each iteration by taking advantage of the inherent broadcast advantage of wireless sensor in smart grid. The matrix perturbation theory is used to prove the convergence of the algorithm. Different cases are studied to show the effectiveness and the plug-and-play capacity of the algorithm. The implementation on the IEEE-33 test system shows that the convergence speed of the broadcast gossip algorithm is higher than that of the traditional gossip algorithm.
Reputation-based consensus algorithms are one of the most promising, but least investigated types of consensus algorithms. Its limitation to persmissioned node identity management shades its potential and causes many ...
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Reputation-based consensus algorithms are one of the most promising, but least investigated types of consensus algorithms. Its limitation to persmissioned node identity management shades its potential and causes many applications to find blockchain unsuitable. In this paper, we upgrade PoRX, an existing consensus algorithm, into becoming the first permissionless pure reputation-based consensus algorithm. This upgrade is highly potential since it only affects the admission process and does not intervene with the consensus process, thus can be extended into other types of consensus algorithms.
To avoid the overuse and prolong the lifetime of distributed energy storage units (DESUs), the state of charge (SOC) management of DESUs cannot be ignored. The conventional control method will cause unnecessary charge...
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ISBN:
(数字)9781728191645
ISBN:
(纸本)9781728191652
To avoid the overuse and prolong the lifetime of distributed energy storage units (DESUs), the state of charge (SOC) management of DESUs cannot be ignored. The conventional control method will cause unnecessary charge and discharge between units. And it suffers from frequency and voltage deviation as well as inaccurate reactive power allocation when time delays exist. To address those problems, a distributed cooperative control based on PI consensus algorithm is proposed for DESUs in this paper. Two controllers are designed, where one combines the SOC management with frequency recovery and the other incorporates the reactive power management with voltage recovery. The small-signal stability analysis is conducted to prove the stability of the proposed control strategy. And Simulations verify its effectiveness.
Blockchain is an immutable database which is decentralized and distributed. This blockchain is shared by all the nodes in the network and every node has the same state. The transactions in this open distributed ledger...
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ISBN:
(数字)9781728168517
ISBN:
(纸本)9781728168524
Blockchain is an immutable database which is decentralized and distributed. This blockchain is shared by all the nodes in the network and every node has the same state. The transactions in this open distributed ledger are verified and confirmed with the help of consensus algorithms. The transactions, once executed and entered, can never be changed or erased. Bitcoin, the first usecase of blockchain, as a digital money, is based on Proof-of-Work (PoW) consensus protocol. PoW has worked tremendously well and can be useful for many industries. The opportunities are high in this innovative technology, and evolution in this area is just a beginning. This paper has described blockchain technology, the underlying concepts of blockchain and the implementation of Proof-of-Work consensus algorithm along with its performance analysis.
Signature-based Collaborative Intrusion Detection System (CIDS) deeply depends on the reliability of nodes to produce attack signatures. Each node in the network is responsible to produce a new attack signature to be ...
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ISBN:
(数字)9781728173566
ISBN:
(纸本)9781728173573
Signature-based Collaborative Intrusion Detection System (CIDS) deeply depends on the reliability of nodes to produce attack signatures. Each node in the network is responsible to produce a new attack signature to be distributed with other nodes. There is an issue that exists in CIDS highlighted in this paper, it is to maintain trust between the nodes while distributing the attack signatures. Recently, researchers found that blockchain has great potential to solve those problems. A consensus algorithm in the blockchain is capable to improve trust between the nodes. The object of this work to is design an extension of the Chain-based consensus algorithm to satisfy the requirement. The extensions name it as Proof of Attack Signature (PoAS). In the evaluation, the outcomes showed that the PoAS consensus algorithm successfully produces trusted attack signatures, and improved the robustness of CIDS, when compared to the network without the PoAS.
A multiagent-based coordination consensus algorithm was designed to simultaneously meet state-of-charge consensus and DC bus voltage stability requirements. A distributed energy storage system model with four batterie...
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A multiagent-based coordination consensus algorithm was designed to simultaneously meet state-of-charge consensus and DC bus voltage stability requirements. A distributed energy storage system model with four batteries was built in Matlab/Simulink, and local droop control was employed to achieve the proposed algorithm. A multiagent system and agent weak communication network were constructed in the JADE platform, and the effectiveness of the proposed algorithm was verified by Simulink and JADE interactive simulation. The effect of communication delay on the system was also analyzed.
In the past few years, Battery Energy Storage System (BESS) has been found of great potential in supporting the frequency control. Increasing attentions have been given to the control strategy of BESS. In this paper, ...
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In the past few years, Battery Energy Storage System (BESS) has been found of great potential in supporting the frequency control. Increasing attentions have been given to the control strategy of BESS. In this paper, a distributed control method considering the life-loss cost is proposed for BESS. Based on the multi-agent system, the Incremental Cost consensus (ICC) algorithm is applied to minimize the life-loss cost of BESS. In order to improve the control performance, parameters of the system are optimized by Genetic algorithm (GA). The simulation results are provided to verify the effectiveness of the proposed approach.
Purpose - The purpose of this paper is to develop a distributed task allocation method for cooperative mission planning of multiple heterogeneous unmanned aerial vehicles (UAVs) based on the consensus algorithm and th...
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Purpose - The purpose of this paper is to develop a distributed task allocation method for cooperative mission planning of multiple heterogeneous unmanned aerial vehicles (UAVs) based on the consensus algorithm and the online cooperative strategy. Design/methodology/approach - In this paper, the allocation process is conducted in a distributed framework. The cooperative task allocation problem is proposed with constraints and uncertainties in a real mission. The algorithm based on the consensus algorithm and the online cooperative strategy is proposed for this problem. The local chain communication mode is adopted to restrict the bandwidth of the communication link among the UAVs, and two simulation tests are given to test the optimality and rapidity of the proposed algorithm. Findings - This method can handle both continuous and discrete uncertainties in the mission space, and the proposed algorithm can obtain a feasible solution in allowable time. Research limitations/implications - This study is only applied to the case that the total number of the UAVs is less than 15. Practical implications - This study is expected to be practical for a real mission with uncertain targets. Originality/value - The proposed algorithm can go beyond previous works that only deal with continuous uncertainties, and the Bayesian theorem is adopted for estimation of the target.
We propose a novel state estimation algorithm for consensus dynamics subject to measurement error. We first demonstrate that with properly tuned parameters, our algorithm attains the same equilibrium value that would ...
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We propose a novel state estimation algorithm for consensus dynamics subject to measurement error. We first demonstrate that with properly tuned parameters, our algorithm attains the same equilibrium value that would be attained using the traditional algorithm based on local state feedback (nominal consensus). We then show that our approach improves consensus performance in a particular class of problems by reducing the state error (i.e., the difference between the agent states and the consensus value). A numerical example compares the performance of the distributed algorithm we propose to that of the traditional local feedback scheme. The results show that the proposed algorithm significantly reduces the state error.
This paper attempts to solve the security problems in communication, consensus-making and authentication of nodes in the Internet of vehicles (IoV) for intelligent transport. Considering the defects of the central nod...
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This paper attempts to solve the security problems in communication, consensus-making and authentication of nodes in the Internet of vehicles (IoV) for intelligent transport. Considering the defects of the central node and service complexity in the IoV, the blockchain was integrated with the IoV to create a decentralized mechanism for communication and consensus-making. In the architecture of the blockchain-based IoV, the Byzantine consensus algorithm based on time sequence and gossip protocol is used to complete information communication and consensus authentication, which not only ensures communication security, improves the consensus efficiency of nodes, but also improves the fault tolerance of the algorithm. The experimental results show that our algorithm outshined the traditional authentication method in information security and consensus efficiency of the IoV. The research findings provide a reference solution to the authentication problems in the IoV for intelligent transport.
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