Power & Energy Magazine - Spanish - May/June 2019 - 99

reactiva se han vuelto severos debido a la carga excesiva de la línea, lo cual hace que la transmisión de
CA en dichas aplicaciones no sea práctica.
La transmisión en CC de alta tensión (HVdc, por sus siglas en inglés) ha sido utilizada desde 1954.
Gracias a importantes avances tecnológicos, su uso ha despegado en los últimos 20 años. Dichos avances incluyen a los dispositivos electrónicos de alta potencia, como los tiristores y, más recientemente,
los transistores, los cuales han permitido el desarrollo de convertidores de fuente de tensión (VSC, por
sus siglas en inglés). La gran mayoría de los sistemas de HVdc comprenden una línea simple o cable y
utilizan un convertidor CA-CC en cada extremo. La conexión directa de múltiples líneas de CC en redes
no ha sido posible, principalmente porque no ha habido disponibilidad CB para CC adecuados. Sim
embargo, en los últimos cinco años, se han construido dos sistemas HVdc de terminal mútiple en modo
VSC en China, mientras que otros están siendo diseñados y desarrollados.
Las redes de transmisión de CC, un avance tecnológico sustancial sobre las conexiones de HVdc
punto a punto están siendo consideradas para muchas aplicaciones en todo el mundo. En Europa, investigadores involucrados en varios grandes proyectos han estudiado el uso de una red de CC con cable en el
Mar del Norte para integrar grandes cantidades de energía eólica offshore y fortalecer las interconexiones entre países de la Unión Europea. En China, ya existen planes para la construcción de una red de CC
de cuatro terminales con líneas aéreas.
Para que las redes de CC funcionen, el mercado debe ofrecer CB para
CC, preferentemente de múltiples proveedores. Estos CB deben brindar
un desempeño y una confiabilidad aceptables, asegurar bajas pérdidas
y estar disponibles en tamaños prácticos a un costo razonable. Se ha
aprendido mucho de la larga experiencia con tecnologías de CB de CA, los cuales están estandarizados en alta tensión y capacidades nominales. Sin
embargo, no son adecuadas para las aplicaciones de CC, y las tecnologías para CB de CC
diferirán sustancialmente de aquellas para
los CB de CA. Los requisitos de desempeño de los CB para CC en las redes de
CC son más rigurosos. Además, abrir
un circuito de CC es mucho más desafiante técnicamente que abrir un
circuito de CA.

mayo/junio 2019

ieee power & energy magazine

©ISTOCKPHOTO.COM/SMARTBOY10

Apropiándose de las grandes ventajas
de las redes de transmisión de CC

99


http://www.ISTOCKPHOTO.COM/SMARTBOY10

Power & Energy Magazine - Spanish - May/June 2019

Table of Contents for the Digital Edition of Power & Energy Magazine - Spanish - May/June 2019

Contents
Power & Energy Magazine - Spanish - May/June 2019 - Cover1
Power & Energy Magazine - Spanish - May/June 2019 - Cover2
Power & Energy Magazine - Spanish - May/June 2019 - Contents
Power & Energy Magazine - Spanish - May/June 2019 - 2
Power & Energy Magazine - Spanish - May/June 2019 - 3
Power & Energy Magazine - Spanish - May/June 2019 - 4
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Power & Energy Magazine - Spanish - May/June 2019 - Cover3
Power & Energy Magazine - Spanish - May/June 2019 - Cover4
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