Power & Energy Magazine - Spanish - May/June 2019 - 80

El sistema de alimentación
múltiple de HVdc actualmente
Cosimulación
S
en funcionamiento ha tenido dos
TSA
s de RT
Modelo
líneas de LCC-HVdc (la HVdc
Sinc de la red de
número 1 es de 300 MW y la
EMT-TSA
número 2 es de 400 MW) desde
Modelos de RTS
Estudio económico
el 2010. La capacidad de energía
Mode
de área amplia
T
lo
M
s
renovable en la isla era de 380
E
TSA
Utilización de
MW en el 2017, y el gobierno de
modelos EMT
la República de Corea pretende
instalar más fuentes de energía
renovable que alcancen un total
de aproximadamente 2 GW en
Jeju para 2030. Aunque existen ocho generadores síncronos,
gráfico 7. El concepto del HS.
tres o cuatro se encuentran normalmente en servicio, con una
generación de energía mínima durante la condición de baja
carga para soportar el scr mínimo que requieren los con1 ms
2 ms
3 ms
4 ms
vertidores de LCC-HVdc. La carga máxima de Jeju fue de
TSA
aproximadamente 930 MW en el 2017. En el futuro, cuando
1 ms
2 ms
3 ms
4 ms
la penetración de la energía eólica de Jeju supere su carga
FPGA
máxima, la isla requerirá la capacidad de transmitir energía
al sistema de potencia a gran escala, como se muestra en el
RTS
gráfico 6. Por lo tanto, la HVdc número 3, que se encuentra
en la etapa de planificación, debe ser flexible y bidireccional.
Es más probable que sea un esquema VSC basado en MMC.
gráfico 8. La sincronización de reloj para hacer coincidir
la simulación de la herramienta del TSA en tiempo real con
el RTS.

Área interna pequeña
Área interna mediana
Área interna grande

gráfico 9. La selección de límites para dividir áreas internas y externas para una simulación precisa.

continente de la República de Corea. Debido a las abundantes fuentes de energía renovable, el organismo autónomo
especial de Jeju manifestó su visión de convertirse en una
isla libre de carbono para el 2030.
80

ieee power & energy magazine

Estudios de viabilidad para la HVdc número 3
de Jeju
Desde el 2010, la KEPCO ha llevado a cabo numerosos
estudios de viabilidad para la HVdc número 3 de Jeju. La
KEPCO primero debe determinar el tipo de HVdc (LCC o
MMC). Respecto de la capacidad de inversión energética,
la MMC-HVdc es más flexible que la LCC-HVdc y tiene
menos influencia negativa en el funcionamiento y la confiabilidad del sistema de potencia de Jeju. Los estudios de
viabilidad abordan problemas clave que incluyen la reserva
de energía activa, la compensación de potencia reactiva, el
Escr, el Escr de alimentación múltiple, la constante inercial efectiva, la capacidad de alojamiento de las fuentes
renovables y el TSA. En particular, la LCC-HVdc requiere
obligatoriamente el funcionamiento del generador síncrono
para mantener una disponibilidad adecuada ante cortocircuitos, y esta restricción reduce la capacidad de alojamiento
de las fuentes renovables. Un estudio del EMT determinó
el procedimiento de inversión energética y su influencia en
el sistema de potencia de Jeju. Aunque la MMC-HVdc no
necesitaría ningún control adicional, la LCC-HVdc requiere
muchos pasos para revertir la transferencia de energía. La
aplicación de la LCC-HVdc requiere la utilización de un
cable de CC impregnado de masa y un transformador convertidor con altos niveles de aislamiento para hacer frente al
cambio de polaridad de la tensión de CC durante la inversión
de potencia de la LCC-HVdc.
mayo/junio 2019



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
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Power & Energy Magazine - Spanish - May/June 2019 - Cover3
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