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Study of the application of MCSA at Induction Motors of a Roller Table 3

Study of the application of MCSA at Induction Motors of a Ro...

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3rd International Conference on Advancement in electrical and Electronic engineering, ICAEEE 2024

作者： Chagas, Rafael M Santos, Walbermark M Federal University of Espirito Santo Electrical Engineering Pos Graduation Program UFES. Vitoria Brazil

ISBN: (纸本)9798350388282

Electric motor fault mapping techniques have been widely used to increase the performance of industrial assets. A major challenge in this scenario is the conflict between equipment that monitors assets and other electrical and electronic equipment installed in the industry, such as capacitors, inductors, among others that influence the harmonics present in the network. One of the most used techniques when we talk about electric motor diagnostics is Current Signature Analysis (ESA). ESA is a set of techniques capable of detecting faults in any electromechanical assembly by reading electrical signals. According to BONALDI et al [1], among the techniques that make up ESA, MCSA (Motor Current Signature Analysis) is the most used technique in the industrial sector and stands out for its scope and simplicity, as it only requires analyzing the harmonic spectrum signal. current of the machine, thus detecting abnormal conditions in the equipment. This article aims to demonstrate the application of MCSA and study the possible applicability of using these techniques to improve the reliability of a roller table where 268 electric motors are installed in series and which use a frequency inverter to power the motors. This starting system can make the MCSA technique difficult and this problem will also be discussed. © 2024 IEEE.

关键词： Oscillators (electronic)

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Study of the application of MCSA at Induction Motors of a Roller Table

Study of the application of MCSA at Induction Motors of a Ro...

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International Conference on Advancement in electrical and Electronic engineering (ICAEEE)

作者： Rafael M Chagas Walbermark M Santos Electrical Engineering Pos Graduation Program UFES. Federal University of Espirito Santo Vitoria ES

ISBN: (数字)9798350388282

ISBN: (纸本)9798350388299

关键词： Industries Induction motors Stators Harmonic analysis Inverters Integrated circuit reliability Inductors

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Event-triggered control co-design for discrete-time systems subject to actuator saturation

Event-triggered control co-design for discrete-time systems ...

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2016 IEEE Conference on Computer Aided Control System Design, CACSD 2016

作者： Groff, L.B. Moreira, L.G. Da Silva, J. M. Gomes Department of Automation and Energy and Pos-Graduation Program in Electrical Engineering UFRGS av. Osvaldo Aranha 103 Porto-Alegre-RS90035-190 Brazil

ISBN: (纸本)9781509007592

In this paper we present a method to simultaneously design a static state feedback gain and the trigger function to stabilize discrete-time LTI systems subject to actuator saturation under an event-triggered strategy. We derive LMI-based conditions that ensure local (or global, when possible) asymptotic stability of the origin based on the Lyapunov theory. To tune the parameters, we propose convex optimization problems aiming at reducing the sampling activity. The efficiency of the proposed method is illustrated by numerical examples. © 2016 IEEE.

关键词： Asymptotic stability

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Event-triggered control co-design for discrete-time systems subject to actuator saturation

Event-triggered control co-design for discrete-time systems ...

引用

IEEE International Symposium on Computer Aided Control System Design (CACSD)

作者： L. B. Groff L. G. Moreira J. M. Gomes da Silva Department of Automation and Energy (DELAE) Pos-Graduation Program in Electrical Engineering (PPGEE) Porto Alegre-RS Brazil

关键词： Actuators Asymptotic stability State feedback Closed loop systems Discrete-time systems Symmetric matrices

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Observer-based event-triggered control: A discrete-time approach

Observer-based event-triggered control: A discrete-time appr...

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American Control Conference

作者： L. B. Groff L. G. Moreira J. M. Gomes da Silva D. Sbarbaro Department of Automation and Energy (DELAE) and Pos-Graduation Program in Electrical Engineering (PPGEE) UFRGS av. Osvaldo Aranha 103 90035-190 Porto Alegre-RS Brazil Department of Electrical Engineering Universidad de Concepcion Chile

ISBN: (纸本)9781467386838

This paper addresses the problem of designing an event-triggered strategy for discrete-time systems with an observer-based controller. The considered system has the actuator and the sensor in different nodes separated by a network. The strategy consists in minimizing the use of the network by only transmitting data from the observer to the controller and from the controller to the actuator when a trigger is generated by an event-trigger function. Based on the Lyapunov theory, conditions for the stability of the closed-loop system in terms of linear matrix inequalities (LMIs) are derived. Convex optimization problems are provided to tune the proposed trigger functions aiming at reducing the usage of the network. Simulation examples illustrate the proposed method and compare the efficiency of the proposed optimization problems.

关键词： Closed loop systems Actuators Observers Stability analysis Symmetric matrices Discrete-time systems State feedback Closed loop systems actuators Symmetric matrix State feedback Observers Stability analysis discrete time systems Event trigger Controllers Induction loop systems

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Event-triggered PI control for continuous plants with input saturation

Event-triggered PI control for continuous plants with input ...

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American Control Conference

作者： L. G. Moreira L. B. Groff J. M. Gomes da Silva S. Tarbouriech Department of Automation and Energy (DELAE) and Pos-Graduation Program in Electrical Engineering (PPGEE) UFRGS av. Osvaldo Aranha 103 90035-190 Porto Alegre-RS Brazil LAAS-CNRS Universite de Toulouse CNRS France

ISBN: (纸本)9781467386838

This paper proposes a methodology to design stabilizing event-trigger strategies for PI controlled linear continuous-time plants subject to input saturation. Using Lyapunov theory techniques, LMI-based conditions are derived to guarantee regional (or global, when possible) asymptotic stability of the origin. These conditions can be cast in an optimization problem to choose the parameters of the trigger function aiming at reducing the sampling activity, while ensuring the regional stability of the origin with respect to a given set of admissible initial states. Simulation results illustrate the application and potentialities of the method.

关键词： Closed loop systems Asymptotic stability Symmetric matrices Stability criteria Design methodology Closed loop systems Symmetric matrix asymptotic stability region Stability criteria PI control Event trigger Economic Resources

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Optimal policy for Joint Call Admission Control in next generation wireless networks

Optimal policy for Joint Call Admission Control in next gene...

引用

2010 International Conference on Network and Service Management, CNSM 2010

作者： Coutinho, Rodolfo W.L. Coelho, Vitor L. Costa, Joao C.W.A. Carvalho, Glaucio H.S. Pos-Graduation Program in Electrical Engineering Federal University of Para Belém Pará Brazil Faculty of Computer Science Federal University of Pará Belém Pará Brazil

ISBN: (纸本)9781424489084

In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (RAT) coexist in a co-located way. Moreover, we study the impact of the different RAT's radius coverage area in the system performance and optimal policy structure. The Semi-Markov Decision Process (SMDP) framework is used for modeling of the JCAC proposed and the value iteration algorithm is used to compute the optimal policy. Numerical results show that variation in the proportionality of the radius of RAT coverage area impact on system performance. © 2010 IEEE.

关键词： Wireless networks

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