<?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>1390-0129</journal-id>
<journal-title><![CDATA[Revista Politécnica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Politéc. (Quito)]]></abbrev-journal-title>
<issn>1390-0129</issn>
<publisher>
<publisher-name><![CDATA[Escuela Politécnica Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-01292023000100045</article-id>
<article-id pub-id-type="doi">10.33333/rp.vol51n1.04</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Planificación de la Expansión Basada en la Máxima Cargabilidad de Líneas de Transmisión Aplicando Conmutaciones del Sistema]]></article-title>
<article-title xml:lang="en"><![CDATA[Transmission Expansion Planning Based on Maximum Lines Loadability and Optimal Transmission Switching]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manuel]]></surname>
<given-names><![CDATA[Espinel,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diego]]></surname>
<given-names><![CDATA[Carrión,]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Politécnica Salesiana  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Politécnica Salesiana  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<volume>51</volume>
<numero>1</numero>
<fpage>45</fpage>
<lpage>56</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-01292023000100045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-01292023000100045&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-01292023000100045&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En la presente investigación, se propone una metodología para solucionar la planificación de la expansión de la transmisión (TEP) de un sistema eléctrico de potencia (SEP) a corto plazo y largo plazo, aplicando conmutaciones en la red de transmisión, contingencias y se considera los rangos máximos de capacidad de líneas de transmisión, los cuales estarán en función de un SIL ideal. El modelo propuesto se basa en la aplicación de flujos óptimos de potencia DC (OPF-DC), lo cual permitirá reducir costos de operación y definir los costos de inversión sin que la estabilidad del sistema se vea afectada. La investigación no considera el racionamiento de la demanda, la metodología será aplicada al modelo de 118 barras del IEEE, el cual será objeto de análisis al variar el número máximo de líneas de transmisión que pueden ser conmutadas, obteniendo como resultado de la aplicación de la TEP los equipos que deben ser instalados en el SEP, para evitar problemas de estabilidad. El periodo de planificación se define para 2 y 10 años con incremento de la demanda. Adicionalmente, se mostrarán cuadros comparativos de los flujos de potencia, ángulos de voltaje y potencia despachada, en condiciones actuales de operación respecto a los escenarios planificados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In the present research, a methodology is proposed to solve the transmission expansion planning (TEP) of an electric power system (EPS) in the short and long term, applying switching in the transmission lines, contingencies N-1 and considering the ranges maximum capacity of transmission lines, which will be based on an ideal SIL. The proposed model is based on the application of optimal power flows DC (OPF-DC), which will allow reducing operating costs and defining investment costs without affecting the system stability. The investigation does not consider load shedding schedules, the methodology will be applied to the IEEE 118 bus-bar system, which will be analyzed by varying the maximum number of transmission lines that can be switched, obtaining as a result of the application of the TEP the equipment that must be installed in the SEP, to avoid stability problems. The planning period is defined for 2 and 10 years with an increase in demand. In addition, comparative tables of power flows, voltage angles, and power dispatch, in current operating conditions with respect to the planned scenarios will be shown.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Conmutación óptima de transmisión]]></kwd>
<kwd lng="es"><![CDATA[flujos óptimos de potencia]]></kwd>
<kwd lng="es"><![CDATA[líneas de transmisión]]></kwd>
<kwd lng="es"><![CDATA[planificación de la expansión]]></kwd>
<kwd lng="es"><![CDATA[sistemas eléctricos de potencia]]></kwd>
<kwd lng="en"><![CDATA[Electrical power systems]]></kwd>
<kwd lng="en"><![CDATA[Optimal power flows]]></kwd>
<kwd lng="en"><![CDATA[Optimal transmission switching]]></kwd>
<kwd lng="en"><![CDATA[Transmission expansion planning]]></kwd>
<kwd lng="en"><![CDATA[Transmission lines]]></kwd>
</kwd-group>
</article-meta>
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