It has long posed a challenging task to optimally deploy multi-agent systems (MASs) cooperatively coverage poriferous environments in real cooperative detection applications. In response this challenge, paper proposes hierarchical control (HCC) protocol for MASs perform sector-based operations. First, distributed Voronoi partition-based sweep-and-assign protocol, combined with sectorial partition method, is developed, enabling the segmentation of whole region into multiple sub-subregions....

In this paper, a distributed algorithm is proposed to identify the node and edge numbers of anonymous leader-follower networks. The present method works merely by exchanging scalar information local intercommunication. merit lies in identifying required network parameters time-varying topological networks without special initialization. Sufficient conditions are derived for cascading systems theoretically guarantee exponential convergence individual estimation total number nodes or edges...

Abstract Networked switched systems (NSSs) have unique advantages, but the unreliability of networks, such as suffering from attacks, will reduce system performance. Besides, required control energy to stabilize is not considered in existing switching signal design methods, which worthy improvement. In this paper, an function‐based resilient triggered law (EFB‐RTSL) proposed for NSSs under dual‐ended denial‐of‐service (DoS) attacks and asynchronous switching. For data communication DoS a...

In this article, the asynchronous sampling based decentralized event-triggered H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> control for switched large-scale systems with disturbance and network communication delay is studied. For each sub system, distributed sensors are adopted to sample at different rates on multiple channels transmit measurements asynchronously. Specifically, an event-triggering scheme (AS-DETS) first developed....

Networked switched quasi-linear parameter varying (LPV) systems can effectively describe the degradation or perturbation of actual systems. For a quasi-LPV networked control system, it may be threatened by various attacks, and communication barriers caused delays, triggers further make scheduling between controller system asynchronous. In this article, event-triggered for subject to denial-of-service attacks asynchronization is concerned. Two event-triggering mechanisms are utilized...

Wind energy conversion systems have become a key technology to harvest wind worldwide. In permanent magnet synchronous generator-based turbine systems, the rotor position is needed for variable speed control and it uses an encoder or sensor. However, these sensors lead some obstacles, such as additional weight cost, increased noise, complexity reliability issues. For reasons, development of new sensorless methods has critically important generators. This paper aims develop adaptive method...

This paper investigates H∞ event-triggered model predictive control (MPC) problem for switched systems. In network transmission processes, two problems (including limited resources and denial of service (DoS) attacks) profoundly affect the usability Especially, DoS attacks that occur in feedback channel can make systems open-loop. this regard, a novel memory-based anti-attack strategy is presented, which implemented by adding cache function to controllers. An event-triggering mechanism...

This paper introduces a new rotor design for the easy insertion and removal of windings. The shape is optimized based on surrogate method in order to achieve low power loss under maximum output. synchronous machine with evaluated 2-D finite element software validated by experiments. shows great potential reducing maintenance repair costs machines, making it particularly suited low-cost mass production markets including gen-sets, steam turbines, wind generators, hybrid electric vehicles.

This paper investigates event-triggered switched heuristic dynamic programming (HDP) control for systems based on an unknown direction gain function (UDCGF). First, the Nussbaum is introduced to describe direction, which makes behaviour of more flexible. The proposed variable threshold event-triggering (VTET) condition can significantly reduce computation while maintaining a certain system performance. Then, detailed Lyapunov stability analysis new tight bound given, reflects asymptotic...

Dear Editor, As a promising multi-agent systems (MASs) operation, autonomous interception has attracted more and attentions in these years, where defenders prevent intruders from reaching destinations. So far, most of the relevant methods are applied ideal environments without agent damages. remedy, this letter proposes realistic method for MASs suffered by damages, fewer than intruders. Firstly, multiagent frame (MAIF) is proposed, enabling to take actions interact with environments. To...

Reliable power network can provide reliable operation of electric for dispatching communication security, due to many key nodes external connectivity in the has only one path, so once link damage because emergencies, these networks failure (or link) and scheduling exception occur easily, thus cause great safe whole network. In order improve robustness system this case, paper designed a new optimization algorithm based on equivalent simplify real analysis.

We employ the adaptive dynamic programming (ADP) approach with a resilient event-triggering mechanism to handle optimal control problems for switched system, which is constrained by network resources and vulnerable denial-of-service (DoS) attacks. The proposed able guarantee satisfactory system performances even when data transmission interrupted intermittently. A key step develop an updating method neural (NN) weights of ADP in response triggered events experienced consideration lowering...

Abstract The openness of networks renders them vulnerable to various forms attacks. When networked switched systems (NSS) suffer from denial service (DoS) attacks and delays, the real‐time property dataset decreases, greatly affecting control performance. To address this issue, article proposes a adaptive dynamic programming (ADP) predictive method. An event‐triggered mechanism is designed reduce unnecessary waste network transmission resources. A accurately reconstruct missing system state...

In order to control, protect and monitor the variable-speed wind turbine generator system, rotor position sensor speed are usually equipped with system measure speed. However, utilisation of these sensors, not only hardware complexity cost increases, but also reliability impairs. Aiming solve problems which incurred during using sensors in this paper presents a sensorless adaptive control strategy for based on surface-mounted permanent magnet synchronous generators (PMSG). addition,...

Distribution and Utilization communication network carries not only the information of distribution control, but also all distributed energy resources power consumption measurement. However, data flow services prediction is very hard to plan predict. This paper proposed model that was useful for capacity structure utilization planning. In this model, we considered service reliability redundant requirement, calculated telecommunication backbone nodes according kinds each basic kind points...

New adaptive control strategies for open-end winding permanent magnet synchronous generator(OEW-PMSG) wind power generation

This paper concentrates on event-triggered control for switched systems with recurrent neural networks. The significance of this is, a method designing observers combined controllers networks is developed. Different from conventional systems, the issue that when system state contains unknown items, study adopts to approach items. Then, considering time-delay, transmission delay and stochastic cyber-attacks, closed-loop augmented estimation error are established. By utilizing multiple...

This article develops a closed-loop electrospinning process control system composed of high-speed industrial camera, an interval type-2 (IT2) fuzzy logic controller (FLC) and high-precision programmable micropump. A pure data-driven IT2 T-S model with micropump flow input fiber diameter output is established by sparse Bayesian learning (SBL) method, the FLC thereby proposed to finely tune according technical requirement circuit suffered external disturbances uncertainties. Sufficient...

This paper studies resilient event-triggered H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> control for switched linear systems under periodic denial of service (DoS) attacks. The event-triggering strategy is used to suppress the influence DoS attacks and increase utilization system resources. Instead using piecewise functions, a united expression developed incorporate different structures inducing by into one form. Then, Lyapunov...

In view of the current tedious camera inspection process, limited test cycle and complex content, in order to reduce work intensity testers, automatic is designed for functional with high repeatability easy operation. This paper uses video image processing technology proposes an application User Interface (UI). The experimental results show that this system can meet requirements UI function test, which effectively save time cost improve efficiency.