IEEE Latin America Transactions (Lat Am Trans IEEE )

Publisher: Institute of Electrical and Electronics Engineers. Region 9, Institute of Electrical and Electronics Engineers


Impact factor 0.19

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  • Website
    Latin America Transactions, IEEE website
  • Other titles
    Revista IEEE América Latina, Revista do IEEE América Latina, Revista del IEEE América Latina, IEEE Latinamerica transactions, IEEE Latin America transactions, Transactions IEEE Latin America
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  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

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Institute of Electrical and Electronics Engineers

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  • Classification
    ​ green

Publications in this journal

  • IEEE Latin America Transactions 01/2015; 13(1).
  • [Show abstract] [Hide abstract]
    ABSTRACT: One of the radical changes that have occurred in current IP networks has been the migration from IPv4 to IPv6. One of the most important aspects of the IPv6 protocol is the fact that allows the labeling of packets belonging to a particular flow in order to give proper treatment by routers, for such purpose, the "Flow Label" field was originally created. However, this field has not been exploited yet and it has even been shelved due to the rise of other technologies such as MPLS. With the rise of IPv6 world implementation, it is essential to know the requirements of the use of this field to exploit the functions for which it was created. This article describes the IPv6 flow label field evolution, specifications and recommendations published by the IETF to use it; also here, some approaches are described, which have been proposed so far using the Label Flow for different purposes.
    IEEE Latin America Transactions 12/2014; 12(8):1602.
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    ABSTRACT: Power flow calculation is the most used procedure in electrical power systems. Generally, most of optimization problems in electric power systems need a steady state analysis to evaluate the objective function. Especially, those optimization problems that make use of artificial intelligence techniques, where, due to the high number of iterations, the power flow calculation has a crucial role. In these cases, the method used for solving the power flow must be fast and accurate at the same time. This paper presents an approximate power flow solution method to solve distribution systems. The proposed method is based on current mismatch equations. The system of obtained equations cannot be presented as a set of linear complex equations. So, a simplification is introduced in this paper in order to express the system by a set of linear complex equations instead of a double set of linear real equations. Regarding the topology of the network, the proposed method is valid for both radial and mesh distribution systems. Finally, so as to demonstrate the validity and the effectiveness of the proposed method, a set of test distribution systems obtained from the technical literature have been used to test it.
    IEEE Latin America Transactions 12/2014; 12(8):1424-1432.
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    ABSTRACT: Based on a linear algebra approach, this paper aims at developing a novel control law able to track reference profiles that were previously-determined to optimize the protein production in a fed-batch fermenter. A main advantage of the proposed strategy is that the control actions are obtained by solving a system of linear equations. The optimal controller parameters are selected through Monte Carlo Experiments in order to minimize a proposed cost index. The controller performance is evaluated through several tests, and compared with other controller reported in the literature.
    IEEE Latin America Transactions 11/2014; 12(7):1206-1213.
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    ABSTRACT: A strategy for the detection of bearing faults in variable speed wind turbines with permanent magnet synchronous machines is presented in this paper. The strategy consists on processing the measured vibration signals as well as the machine voltages. From these voltages and using a phase locked loop, the electrical angle is calculated in order to resample vibrations synchronized with rotor position. Then, it is possible to use conventional vibration-based techniques for bearing fault detection even under variable speed operation conditions. Experimental results to validate the proposed strategy are also presented in this work.
    IEEE Latin America Transactions 10/2014; 12(7):1199 - 1205.
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    ABSTRACT: Some types of wireless sensor networks applications allow a lower data register frequency. Hence, the variation of the data register frequency provides energy saving to the sensor nodes. Environmental monitoring for precision agriculture is a context example in which the variation of the data register frequency can be used. This work proposes two strategies based on adaptive automata that dynamically set the gap (time) between the data register and the sending of data from the sensor. These strategies consist in using a default lower data register frequency when the data values are in a normal interval, and use high frequency when the data value registered from sensors are considered atypical, or a special phenomenon. In this special case, the wireless sensor network should register the data in more detail. Using the dynamic setting of the data register frequency, energy savings from sensor nodes were obtained, without the wireless sensor network losing efficiency in environmental monitoring.
    IEEE Latin America Transactions 10/2014; 12(7):1284.
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    ABSTRACT: This paper presents a framework for simulation of Adaptive Markov Machines, a device that merges Markov Chains and adaptive techniques into a single tool. This framework was developed as a reusable API for simulation of stochastical processes whose characteristics change over time, in order to be used for simulation of creative actions such as automatic music generation. The paper begins with the definition of Adaptive Markov Machines used as base for the framework implementation, then it describes the framework itself and it ends with the definition of results and presentation of future work related to the paper
    IEEE Latin America Transactions 10/2014; 12(7):1271.
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    ABSTRACT: A control method is proposed with the objective of maximizing the energy transference in permanent magnet synchronous generators (PMSG). Such control is based on the evaluation of instantaneous power components. First, the conventional control strategy 6 steps for PMSG in compared with the strategy proposed for 3-wire systems where the latter has the advantage of minimizes copper losses and reduce torque ripple. Then a 4-wire systems is analyzed, the topology implemented connect the neutral point of the generator to the midpoint of the DC bus capacitor bank, in these case, the strategy proposed can increase the energy transfer exploiting the homopolar current flow. Simulation results are presented and analyzed to validate the proposed strategies for generators with three different EMF waveforms. From these results, it can be concluded that when neutral is connected, it is possible to take advantage of the homopolar components of the generator EMF by imposing and adequate current with the objective of maximizing the generator power.
    IEEE Latin America Transactions 09/2014; 12(6):1071-1077.