IEEE Power & Energy Magazine - Spanish - May/June 2021 - 59

se proporciona una mayor capacidad de inversor de
la requerida para abastecer a las cargas, aumentando
así la corriente de falla disponible. Esto, por supuesto,
tiene un costo.
2) El ángulo de fase entre la corriente de falla de una IBR
y la tensión en el punto de inyección de corriente depende
de cómo esté programado la IBR. Las IBR normalmente
tendrán una respuesta de potencia reactiva
de baja tensión específica de modo que ajustarán el ángulo
de fase de su corriente de salida, dependiendo de
la tensión, lo cual significa que se debe conocer la tensión
para determinar el ángulo de fase. Se requiere una
solución iterativa para modelar esto matemáticamente.
3) Muchas IBR limitan la magnitud de la corriente de
falla reduciendo los picos de la forma de onda de la corriente
de salida. Para estas IBR, la corriente de falla
es altamente no sinusoidal. Esto puede causar problemas,
como errores en las mediciones de la raíz media
cuadrática y el disparo de los sensores de falla a tierra.
4) Las IBR pueden dispararse durante eventos de falla
con varios activadores internos, como errores de medición
de frecuencia y límites aplicados por el software
en los saltos máximos de fase (errores de lazo
cerrado de fase sincronizada).
Microrredes distribuidas versus centralizadas
Todas las fuentes de potencia de una microrred centralizada
están conectadas a un nodo fuente único. Una microrred
P, Q
FED
Servicio principal (SP)
FED
P, Q
CB
P, Q
CB
Alimentador principal 1 (SP)
Alimentador principal N (SP)
P, Q
NU
P, Q
NU
P, Q
FED
Alimentador
secundario 1 (BT)
FED
Cargas
FED
Cargas
NU
NU: unidad de red
P, Q
NU
FED
FED
Alimentador
secundario K (BT)
Cargas
Cargas
Cargas
figura 4. Una red secundaria mallada con FED agregadas (señaladas por las flechas rojas). Las FED son más grandes que
las cargas energizadas, y el flujo eléctrico entonces que atraviesa la unidad de red puede ahora ser bidireccional bajo
condiciones de funcionamiento normales, como indican las flechas P, Q.
mayo/junio 2021i
eee power & energy magazine
59
Cargas
Cargas

IEEE Power & Energy Magazine - Spanish - May/June 2021

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - Spanish - May/June 2021

Contents
IEEE Power & Energy Magazine - Spanish - May/June 2021 - Cover1
IEEE Power & Energy Magazine - Spanish - May/June 2021 - Cover2
IEEE Power & Energy Magazine - Spanish - May/June 2021 - Contents
IEEE Power & Energy Magazine - Spanish - May/June 2021 - 2
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IEEE Power & Energy Magazine - Spanish - May/June 2021 - 4
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IEEE Power & Energy Magazine - Spanish - May/June 2021 - 125
IEEE Power & Energy Magazine - Spanish - May/June 2021 - Cover3
IEEE Power & Energy Magazine - Spanish - May/June 2021 - Cover4
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