<?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>S1405-77432017000300233</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Determinación de estados operativos óptimos en redes eléctricas con restricciones de economía y seguridad]]></article-title>
<article-title xml:lang="en"><![CDATA[Determining optimal operating states on electric networks with economic and security restrictions]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Ibarra]]></surname>
<given-names><![CDATA[Tania Libertad]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez-Padilla]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Muro]]></surname>
<given-names><![CDATA[Víctor Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guadalajara Departamento de Ingeniería Mecánica Eléctrica ]]></institution>
<addr-line><![CDATA[Jalisco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guadalajara Departamento de Ingeniería Industrial ]]></institution>
<addr-line><![CDATA[Jalisco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guadalajara Departamento de Ingeniería Mecánica Eléctrica ]]></institution>
<addr-line><![CDATA[Jalisco ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>18</volume>
<numero>3</numero>
<fpage>233</fpage>
<lpage>243</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432017000300233&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432017000300233&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432017000300233&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se programaron dos formulaciones para estudiar flujos de potencia para una red de transmisión. Se consideran dos métodos: el de Newton-Rapshon incorporando restricciones de seguridad y el método de flujos óptimos con consideraciones económicas. Se muestra un ejemplo para una red eléctrica de prueba de 30 nodos con la que se comparan resultados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract There are programmed formulations to study power flow on electrical transmission networks. Two methods are compared: the Newton-Raphson method including security constraints and the optimal flow method with economic considerations. An example of an electric network of 30 nodes is used to compare results.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Flujos Óptimos(OPF)]]></kwd>
<kwd lng="es"><![CDATA[seguridad]]></kwd>
<kwd lng="es"><![CDATA[estabilidad de voltaje]]></kwd>
<kwd lng="en"><![CDATA[Optimal Flows(OPF)]]></kwd>
<kwd lng="en"><![CDATA[security]]></kwd>
<kwd lng="en"><![CDATA[voltage stability]]></kwd>
</kwd-group>
</article-meta>
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