<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432018000400009</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2018.19n4.039</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Control de velocidad de un motor de CD basado en mediciones de la corriente de armadura]]></article-title>
<article-title xml:lang="en"><![CDATA[Speed control of a DC motor based on armature current measurement]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Betancour]]></surname>
<given-names><![CDATA[Reymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valenzuela-Murillo]]></surname>
<given-names><![CDATA[Fredy Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Solís]]></surname>
<given-names><![CDATA[Fermín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda-Hernández]]></surname>
<given-names><![CDATA[Carlos Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morfin-Garduño]]></surname>
<given-names><![CDATA[Onofre Amador]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olmos-López]]></surname>
<given-names><![CDATA[José Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ingeniería y Arquitectura ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ingeniería y Arquitectura ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ingeniería y Arquitectura ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Los Lagos Departamento de Ciencias Exactas y Tecnología]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma de Ciudad Juárez Instituto de Ingeniería y Tecnología Departamento de Eléctrica y Computación]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ingeniería y Arquitectura ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>19</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432018000400009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432018000400009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432018000400009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este trabajo se propone un controlador de velocidad para motores de Corriente Directa (CD) sin dependencia de sensores mecánicos (encoders). El controlador se basa en estrategias de estimación en tiempo real y medición indirecta. Para esto, la corriente de inducido es utilizada como única variable eléctrica disponible por medición. Por lo cual, la correcta instrumentación del proceso de adquisición de datos es de vital importancia para garantizar que las mediciones correspondan con el valor real. El proceso de estimación se realiza en dos etapas principales, en una primera etapa se utiliza la técnica de diseño de observadores de modos deslizantes para estimar el par eléctrico del motor. En la segunda etapa se utiliza la técnica de diseño de observadores por ubicación de polos. La ley de control proporcional integral clásica PI en combinación con la retroalimentación de los estados se utiliza para establecer las acciones del sistema de control. La validación del controlador se realiza por medio de simulación digital y con pruebas experimentales de laboratorio sobre un motor en derivación con excitación separada. La implementación del banco de trabajo consiste en una tarjeta de adquisición y control DSP, un convertidor electrónico de CD-CD, una tarjeta de instrumentación para medir la corriente y una computadora PC. La tarjeta DSP es programada mediante diagramas de bloques. El manejo de la potencia entregada al motor se realiza a través del convertidor CD-CD con base en la técnica PWM. La velocidad del motor muestra un comportamiento asintóticamente estable ante cambios en el par de la carga y en los valores de velocidad de referencia. Los resultados de las pruebas demuestran la robustez, la precisión y la rapidez de convergencia del control propuesto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this paper a speed controller for Direct Current (DC) motors without dependence of mechanical sensors (encoders) is proposed. The controller is based on real time estimation strategies and indirect measurements. For this, the induced current is employed as only available electrical variable. Therefore, the correct instrumentation of the data acquisition process is very importance to ensure that the measurements correspond to the real value. The estimation process is carried out in two main stages, in a first stage the sliding mode observer technique is used for estimate the electric motor torque. The second stage uses the pole placement observer design. The classical proportional-integral (PI) control law on combination with the state feedback are used to carry out the control actions. The controller validation is realized by means of digital simulations and real-time experimental tests using a separately excited DC motor. The workbench implementation consists of a DSP acquisition and control board, a CD-CD electronic converter, an electric current measure instrumentation board and a PC computer. The power delivered to the CD motor is handled through CD-CD converter based on PWM technique. The motor speed shows an asymptotically stable behavior to changes in load torque and reference speed values. The tests results demonstrate the robustness, the precision and the speed convergence of the proposed control.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Control de velocidad]]></kwd>
<kwd lng="es"><![CDATA[motor de CD]]></kwd>
<kwd lng="es"><![CDATA[observador de estados]]></kwd>
<kwd lng="es"><![CDATA[sensor de corriente]]></kwd>
<kwd lng="es"><![CDATA[proporcional integral]]></kwd>
<kwd lng="en"><![CDATA[Speed control]]></kwd>
<kwd lng="en"><![CDATA[DC motor]]></kwd>
<kwd lng="en"><![CDATA[state observer]]></kwd>
<kwd lng="en"><![CDATA[current sensor]]></kwd>
<kwd lng="en"><![CDATA[proportional integral]]></kwd>
</kwd-group>
</article-meta>
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