Power & Energy Magazine - Spanish - May/June 2019 - 121

la estación. Técnicamente, es factible implementar un
sistema de HVdc de subtransmisión sin transformadores convertidores al tomar en cuenta las condiciones
favorables en las aplicaciones de las redes urbanas,
que incluyen tensiones de terminales de CA iguales
y redes de CA sólidas. El HVdc puede usar configuraciones de la línea simétrica de CC monopolar y
comportamientos similares de control de tensión de
las dos estaciones de conversión (ambas capacitivas o
ambas inductivas) como resultado de la corta distancia
eléctrica entre los dos convertidores.
✔ Conversión de circuito a funcionamiento en CC: Los
sistemas de subtransmisión de HVdc podrían implementarse mediante la conversión de los circuitos de
CA existentes a funcionamiento con CC. Con ello,
se puede lograr una mayor capacidad de transferencia de potencia utilizando los corredores existentes
sin instalar nuevos circuitos o reemplazando los circuitos con conductores de alta capacidad, y también
puede aumentar la flexibilidad de control del flujo de
energía de la red. Se están llevando a cabo actividades
de investigación sobre la viabilidad y las especificaciones técnicas de la conversión de circuitos de CA a
funcionamiento CC. Los ámbitos estudiados incluyen
topologías de convertidor preferidas que pueden permitir una mayor transmisión energética y problemas
de vida útil del aislamiento del cable de HVac al funcionar con la tensión de CC.
✔ Sistemas multiterminales: Las soluciones de interconexión de la subtransmisión de HVdc para mejorar la
resiliencia y la flexibilidad operativa de la red urbana
podrían extenderse hasta las configuraciones multiterminales de VSC-HVdc. Gracias a las recientes
mejoras en los accionadores de los disyuntores, se ha
podido conseguir disyuntores mecánicos de CC con
rangos de tensión de subtransmisión y tensión media.
El disyuntor mecánico de CC tiene pérdidas muy bajas y tiempos de operación casi tan rápidos como los
de los conceptos híbridos, que combinan semiconductores con interruptores mecánicos.

Resumen
Las futuras redes urbanas requerirán suministros eléctricos
que sean resilientes, confiables, flexibles, seguros, sostenibles y asequibles. Las soluciones de subtransmisión basadas
en VSC-HVdc ofrecen la opción de tecnología avanzada más
flexible para abordar múltiples problemas de expansión relacionados con la mejora y modernización de la red eléctrica
urbana. Al establecer una alimentación energética directa en
los centros de carga y fortalecer la capacidad de suministro de energía intraurbana, se puede mejorar considerablemente la flexibilidad operativa y la resiliencia de las redes
eléctricas urbanas, y se pueden reducir significativamente
los requisitos para la generación local y las reservas de funcionamiento. La tecnología de VSC-HVdc está en continuo
mayo/junio 2019

desarrollo y mejora. Los nuevos conceptos de diseño de sistemas se centran en productos modulares y estructuras compactas que proporcionarán flexibilidad para las aplicaciones
de redes eléctricas urbanas.

Lecturas complementarias
Departamento de Planificación de Transmisión, "The
long-range transmission plan 2018-2028" (Plan de
transmisión de largo alcance 2018-2028), Consolidated Edison Company, Nueva York, 26 de octubre
de 2018. [En línea]. Disponible: https://www.coned
.com/-/media/files/coned/documents/business-partners/
transmission-planning/long-range-transmission-plan-2018
.pdf?la=en
K. K. Sen y M. L. Sen, "Introducing the family of 'Sen'
transformers: A set of power flow controlling transformers"
(Introducción de la familia de transformadores 'Sen': un
conjunto de transformadores para controlar el flujo energético), IEEE Trans. Power Del., vol.18, n.°1, págs. 149-157,
2003.
R. Silberglitt, E. Ettedgui y A. Hove, "Strengthening the
grid: Effect of high-temperature superconducting power technologies on reliability, power transfer capacity, and energy
use" (Fortalecimiento de las redes: efecto de las tecnologías
de potencia superconductora de alta temperatura en la confiabilidad, capacidad de transferencia energética y uso de la
energía), RAND Corporation, Santa Monica, CA, MR-1531DOE, 2002.
J.Pan, R.Nuqui, K.Srivastava, T.Jonsson, P.Holmberg y
Y.-J.Hafner, "AC grid with embedded VSC-HVDC for secure and efficient power delivery" (Red de CA con VSC-HVDC integrada para un suministro de energía seguro y eficiente), en Proc. IEEE Energy 2030 Conf., 2008.
L.Shen, X.Ye, W.Xu, Q.Tang, T.Li y Y.Wang, "Operation
and correlation of VSC-based technologies in city center
power grids" (Operación y correlación de tecnologías basadas en VSC en redes eléctricas del centro de la ciudad), en
Proc. IEEE Conf. Integración del sistema eléctrico e Internet de la Energía, 2017.
M.Callavik, "Grid resilience by power electronics: Use
subtransmission HVDC interties for novel emergency power
control of split networks" (Resiliencia de la red mediante
la electrónica de potencia: uso de interconexiones HVDC
de subtransmisión para un novedoso control de energía de
emergencia de redes divididas), IEEE Power Electron. Mag.,
vol. 5, n.º 1, págs. 54-56, 2018.
U. Riechert, M.Callavik, M.Salzer y P.Bergelin, "Compact high voltage direct current (HVDC) transmission systems" (Sistemas compactos de transmisión de corriente directa de alta tensión (HVDC)), en Proc. High Voltage Symp.,
2016.

Biografías
Jiuping Pan pertenece a ABB Corporate Research, Raleigh,
Carolina del Norte.
ieee power & energy magazine

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https://www.coned.com/-/media/files/coned/documents/business-partners/transmission-planning/long-range-transmission-plan-2018.pdf?la=en https://www.coned.com/-/media/files/coned/documents/business-partners/transmission-planning/long-range-transmission-plan-2018.pdf?la=en https://www.coned.com/-/media/files/coned/documents/business-partners/transmission-planning/long-range-transmission-plan-2018.pdf?la=en https://www.coned.com/-/media/files/coned/documents/business-partners/transmission-planning/long-range-transmission-plan-2018.pdf?la=en

Power & Energy Magazine - Spanish - May/June 2019

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Contents
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