IEEE Power & Energy Magazine - Spanish - November/December 2020 - 36

1.1

Desafíos
Una cantidad creciente de evidencia indica que la generación de energía FVD supone desafíos considerables para
la seguridad del sistema en el NEM, debido a la respuesta
de los inversores de forma masiva durante perturbaciones
importantes del sistema eléctrico y el continuo " vaciado "
de la carga diurna del sistema. Esta sección se centra en
la respuesta a las perturbaciones de los sistemas FVD. Sin
embargo, es importante señalar que los perfiles de carga
reducida del sistema han comenzado a impactar en las operaciones en Australia Meridional debido a la gran cantidad
de consumo de energía FVD en la región que se relaciona la
demanda subyacente local y la débil interconexión de transmisión con las regiones vecinas, haciendo que el estado sea
más susceptible al aislamiento del NEM. Para más detalles,
consulte " Renewable Integration Study Stage 1-Appendix
A: High Penetrations of Distributed Solar PV " ( " Etapa 1 del
estudio de integración de energías renovables-Apéndice A:
altas penetraciones de energía solar FV distribuida " ) en la
sección " Lecturas Complementarias " .

51

Frecuencia pico: 50.866 Hz a las 1:11:44 p.m.
Frecuencia: <50.15 Hz por 60 s
Iniciando a las 1:26:10 p.m. y
Frecuencia: >50.25 Hz a las
Terminando a las 1:27:10 p.m.
1:11:42 p.m.

1

50.5

1:34 p.m.

1:32 p.m.

1:30 p.m.

1:28 p.m.

1:26 p.m.

48.5

1:24 p.m.

0.6

1:22 p.m.

49

1:20 p.m.

0.7

1:18 p.m.

49.5

1:16 p.m.

0.8

1:14 p.m.

50

1:12 p.m.

0.9

1:10 p.m.

Potencia normalizada
(MW/MW a las 1:10:55 p.m.)

Seguridad del sistema

Frecuencia (Hz)

Un componente clave de esta solución radica en el establecimiento de una interfaz web estándar para comunicar
los límites de exportación dinámicos a los inversores inteligentes, los agregadores y las VPP. SAPN ya está llevando a
cabo ensayos preliminares en esta área en conjunto con operadores de VPP en Australia Meridional y está planificando
un programa piloto más extenso para ampliar esta capacidad a los inversores solares inteligentes en 2021. Esto se
llevará a cabo en colaboración con otro DNSP, fabricantes
líderes de inversores y un proveedor de puertas de enlace.
El plan de SAPN es adoptar el Estándar 2030.5 del IEEE,
Estándar para el Protocolo de Aplicación de Perfiles de
Energía Inteligente, que también se aplica en California
como parte de la Regla 21. SAPN ha aprovechado el trabajo
realizado por la organización normativa SunSpec Alliance
y está identificando los aspectos del Estándar 2030.5 del
IEEE que deberían aplicarse en el contexto de Australia
Meridional. Se espera que se comunique una serie de pronósticos de 24 horas sobre los límites de exportaciones a
los inversores solares, las VPP y los agregadores cada 5
minutos de manera continua, con la arquitectura técnica
que aparece en la figura 14.

Hora Estándar Oriental Australiana
Respuesta especificada de estándar
AS/NZS4777.2:2015
Potencia observada: <30 kW, 878 sitios

Respuesta especificada de estándar
AS/NZS4777.2:2015 (1 min. promedio)
Potencia observada: 30-100 kW, 92 sitios

Frecuencia en Queensland

50.25 Hz

50.15 Hz

figura 15. Respuesta de caída de sobrefrecuencia a inversores posterior a 2016 de Queensland durante el evento del 25
de agosto de 2018. La potencia promedio en conjunto se compara con el perfil especificado. Para más detalles, consulte
" Integración técnica de fuentes de energía distribuida " en la sección " Lecturas Complementarias " .
36	

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IEEE Power & Energy Magazine - Spanish - November/December 2020

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