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A modeling approach of EFT faults on in-vehicle communication protocols supported by FTA analysis

IFAC-PapersOnLine 2024年第4期58卷 580-585页

作者： Daniel H. Pohren Alexandre dos S. Roque Edison P. de Freitas Carlos E. Pereira Graduate Program on Electrical Engineering (PPGEE)-UFRGS Graduate Program on Electrical Engineering - URI Competence Center Embrapii on Digital Agriculture - SENAI-RS

This paper explores the fault susceptibility of in-vehicle communication protocols. It proposes integrating aspect-oriented concepts to model common faults in the design phases of embedded systems and faults as non-functional requirements NFR. An analytical case study was conducted considering the tests of electrical fast transients (EFT) injection presented in previous works and based on data collected during these experiments. A fault tree analysis was conducted to determine the effect of the faults in the networked control system. Results based on a single-time approach reveal adverse effects (CAN: 0.622, CAN-FD: 0.352, FlexRay: 0.730). The research contributes to mitigating the impact of EFT faults on in-vehicle communication networks, enabling more specific fault analysis.

关键词： Fault tree analysis electrical Fast Transients Modeling In-vehicle communication

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Low-power energy generation systems for two-phase PM machine with reduced-switch-count controlled switches 7

Low-power energy generation systems for two-phase PM machine...

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7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

作者： Bahia, Filipe A. Da C. Jacobina, Cursino B. Rocha, Nady Da Silva, Italo Roger F. M. P. Salvadori, Fabiano Post-Graduate Program in Electrical Engineering PPgEE COPELE UFCG Brazil Department of Electrical Engineering Federal University of Campina Grande UFCG Campina Grande Paraíba Brazil Department of Engineering Federal University of the Paraíba UFPB João Pessoa Paraíba Brazil

ISBN: (纸本)9781467371506

This paper presents two power generation systems with a two-phase permanent magnet (PM) synchronous machine associated to a rectifier with small number of controlled switches. The topologies have as main purpose converting wind energy into electrical energy for low power applications, providing a great potential to be used in urban areas. They can be used in applications connected to the grid or in the stand-alone mode or feeding a micro grid. Compared with two three-phase generation systems that use reduced number of controlled switches, the proposed topologies permit obtaining sinusoidal machine currents, with low harmonic distortion, using a smaller number of controlled switches. Simulation and experimental results also are presented. © 2015 IEEE.

关键词： Topology

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An embedded asterisk platform instructional design to teach voice over IP in information technology undergraduate courses: Using raspberry PI and asterisk to build an embedded portable didactic tool 7

An embedded asterisk platform instructional design to teach ...

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7th International Conference on Computer Supported Education, CSEDU 2015

作者： Dias, M.C. Bezerra, L.C. Morais, D. Gabi, C.F. Perkusich, A. Electrical Engineering Coordination Laboratory of Telephony and Convergent Networks - LTCON Federal Institute of Education Science and Technology of Paraíba - IFPB João Pessoa Brazil Post-graduate Program in Electrical Engineering - PpgEE - COPELE Electrical Engineering Department Federal University of Campina Grande - UFCG Campina Grande Brazil

ISBN: (纸本)9789897581076

This paper shows the building of an embedded Asterisk platform as a key technique for providing Information Technology classes with an extra laboratorial environment for learning Voice over Internet Protocol. Besides building the platform, the students are asked to mount a functional telephony system with it that meets the criteria of low cost, low building complexity and high adaptability to convergent networks. The Raspberry PI version B was the board used to provide portability for the students to work outside the laboratory environment. Asterisk was presented as a useful tool on which the students could create a flexible system that could be easily deployed on convergent networks. This work was developed in the Telephony subject for the electrical engineering and the Telecommunications Systems undergraduate courses from the Federal Institute of Education, Science and Technology of Paraíba - IFPB, and presented good results in the students' learning achievements.

关键词： Students

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Study on the applicability of microstrip circular antennas in partial discharges detection in power transformers 7

Study on the applicability of microstrip circular antennas i...

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7th Brazilian electrical Systems Symposium, SBSE 2018

作者： Xavier, G.V.R. Da Costa, E.G. Serres, A.J.R. De Oliveira, A.C. Nobrega, L.A.M.M. Cruz, J.N. Post-Graduated Program in Electrical Engineering-PPgEE-COPELE Federal University of Campina Grande Campina Grande Brazil Federal University of Campina Grande Campina Grande Brazil

ISBN: (纸本)9781538633632

The degradation of transformer's internal insulation system can be monitored by partial discharges activity. Among the supervising systems, the use of ultra high frequency (UHF) antennas attached on transformer's tank is highlighted. The UHF microstrip antennas can be used on this task and provide some interesting features, such as, low cost, ease of manufacturing and installation on several facilities. However, the microstrip antennas have a narrow band. The main objective of this work is to analyze the applicability of a microstrip circular antenna on detection of partial discharges in power transformers. For this purpose, a truncated ground plane technique for bandwidth optimization was applied. The manufactured antenna reached a high sensitivity for the partial discharges detection, showing mean gainvalue higher than 2 dB on the frequency range analyzed, as well return losses lower than-10 dB. © 2018 IEEE.

关键词： Partial discharges

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Modeling and control of a XY positioning table 12

Modeling and control of a XY positioning table

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12th IEEE International Conference on Industry Applications, INDUSCON 2016

作者： Moreira, Lucas J. Da S. Dias, Christian C. Lima, Rafael B. C. Barros, Pericles R. Acioli, George Post-Graduate Program in Electrical Engineering-PPgEE COPELE Federal University of Campina Grande-UFCG Campina Grande PB58429-900 Brazil Graduate Program in Electrical Engineering-PGEE Federal University of Campina Grande-UFCG Campina Grande PB58429-900 Brazil Electrical Engineering Department-DEE Federal University of Campina Grande-UFCG Campina Grande PB58429-900 Brazil

ISBN: (纸本)9781509051274

This paper is about modeling and control of a XY positioning table. It is described the construction and instrumentation of a double axis positioning system. It is developed a general electromechanical model, followed by the identification of simplified models for control purposes. At last, it is proposed a PID control strategy, tuned by Internal Model Control (IMC) technique. © 2016 IEEE.

关键词： Three term control systems

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Time-Domain Analysis of Protection Systems - Assessing the Behavior of Overcurrent Function of Harmonic Filters During Energizations 8

Time-Domain Analysis of Protection Systems - Assessing the B...

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8th Workshop on Communication Networks and Power Systems, WCNPS 2023

作者： Soares De Souza, Joao R. Monteiro, Felipe Vidotti Resende, Filipe B. De Conti, Alberto Ufmg - Universidade Federal de Minas Gerais Brazil Vale S. A. Brazil Ppgee - Graduate Program in Electrical Engineering - Ufmg Brazil

ISBN: (纸本)9798350343571

This paper evaluates the behavior of harmonic filters subjected to overcurrents during energization. Statistical studies were carried out in ATPDraw considering different techniques to estimate the magnitude of inrush currents, one based on a true RMS estimator and another based on a 60-Hz Fourier filter phasor estimator. The results show that the theoretical limits of the currents used as reference to the overcurrent protection settings presented in literature were consistently defined in the evaluated cases, but that the selection of the decay time could be improved. © 2023 IEEE.

关键词： Time domain analysis

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Assisted routing algorithm for D2D communication in 5G wireless networks 10

Assisted routing algorithm for D2D communication in 5G wirel...

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10th Annual Wireless Days Conference, WD 2018

作者： Bastos, Alex Vidigal Silva, Cristiano M. Da Silva, Diogenes C. Graduate Program in Electrical Engineering PPGEE/UFMG and DTECH/UFSJ Belo Horizonte Brazil Department of Technology DTECH / UFSJ Ouro Branco Brazil Department of Electrical Engineering DEE / UFMG Belo Horizonte Brazil

ISBN: (纸本)9781538656327

This paper presents a Network Assisted Routing algorithm - NAR, for device-to-device communication in 5G cellular architectures with the goal to extend the coverage of base stations. NAR takes into account that D2D communications in cellular networks are managed by base stations. The Load Balancing Based Selective Ad Hoc On-Demand Multipath Distance Vector algorithm is considered as reference. Both algorithms are implemented in SimuLTE, and results demonstrate that our proposal shows an improvement of 35% in energy savings with an increase of 15% in the number of packets sent. © 2018 IEEE.

关键词： Routing algorithms

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SIX-PHASE MACHINE DRIVE SYSTEM BASED ON THREE THREE-LEG CONVERTERS

SIX-PHASE MACHINE DRIVE SYSTEM BASED ON THREE THREE-LEG CONV...

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Brazilian Power Electronics Conference

作者： A. C. N. Maia C. B. Jacobina Federal University of Campina Grande (UFCG) Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Electrical Engineering Department (DEE)

ISBN: (纸本)9781479902712

In this paper, a six-phase machine drive system fed by a nine-leg converter is proposed. The drive system is composed of a three three-leg inverters feeding a six-phase induction motor, which is adequate to develop a high power system with voltage rating restrictions. The studied system is compared to the conventional solution and it is demonstrated that the nine-leg converter permits to reduce the harmonic distortion of the machine currents and to decrease the power processed by converter switches. The system model and the PWM strategy are presented. Experimental results demonstrate the feasibility of the proposed system.

关键词： Harmonic Distortion Motor Drive System Ratings of Switches Semiconductor Losses Six-Phase Machine Three-leg Converters

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Hybrid open-end and NPC AC six-phase machine drive systems

Hybrid open-end and NPC AC six-phase machine drive systems

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作者： Melo, Victor F.M.B. Jacobina, Cursino B. Rocha, Nady Post-Graduate Program in Electrical Engineering - PPgEE COPELE UFCG Campina Grande Paraíba Brazil Electrical Engineering Department Federal University of Campina Grande - UFCG Campina Grande Paraíba Brazil Federal University of Paraíba - UFPB João Pessoa Paraíba Brazil

ISBN: (纸本)9781479956982

This paper presents two machine drive system based on a six-phase machine (SPM) and three-leg converters. The machine is composed of two three-phase groups. For the first configuration, one of the groups is connected to a three-leg converter and the other is connected to other two three-leg converters in an open-end winding configuration (see Fig. 4). For the second configuration, one of the groups is connected to a three-leg converter (similar to first one) and the other group is connected to a three-level NPC converter (see Fig. 5). Since the machine two groups are fed differently, the system topology is considered to be hybrid. The purpose of these topologies is to be an alternative configuration, being midway between the conventional six-leg inverter system (see Fig. 1) and the NPC six-leg inverter system (see Fig. 2) and Conventional twelve-leg Open-end inverter system (see Fig. 3). Compared with the conventional six-leg system, the proposed systems permits reducing the power processed by the semiconductor switches and their ratings, the dc-link voltage and the harmonic distortion. On the other hand, the proposed systems constitute less complex alternatives, compared with the open-end and NPC counterparts (see Fig. 3). PWM and control strategies are discussed. Simulation and experimental results are also presented. © 2014 IEEE.

关键词： Topology

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Three-phase drive systems based on OEW configurations with reduced controlled switch count

Three-phase drive systems based on OEW configurations with r...

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Brazilian Power Electronics Conference, COBEP

作者： Gregory A. A. Carlos Reuben P. R. Sousa Cursino B. Jacobina Joao P. R. A. Mello Luciano M. Barros Alexandre C. Oliveira Post-Graduate Program in Electrical Engineering - PPgEE Copele Department of Electrical Engineering Federal University of Campina Grande (UFCG) ParaIba Brazil

This paper proposes ten alternative drive topologies with reduced number of controlled switches. The topologies are composed by three-level (3L) and two-level (2L) legs combinations. All of them aim to feed a three-phase machine based on the concept of open-end-winding (OEW). Conventional OEW configurations are considered for comparison purposes. The proposed topologies are named accordingly to the number of levels associated in each leg. For example, a topology with one 3L leg and five 2L legs is named 322-222. The other configurations are named in a similar manner. The OEW based systems using proposed configurations aim to give intermediate alternative solution in terms of cost-benefit rather than using conventional configurations. Some simulation and experimental results are presented in order to validate the theoretical approaches.

关键词： Switches Legged locomotion Inverters Topology Pulse width modulation Windings

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