IEEE Power & Energy Magazine - Spanish - September/October 2020 - 50

tabla 4. Los beneficios económicos relativos
obtenidos
por la generación de energía.

Opción de
desarrollo

Descripción

Aumento
promedio
de la
generación
(%)

Disminución
de compras
(%)

Optimización de
la operación de
las instalaciones
existentes

-

-

2A

Rehabilitación
de Acaray I/
generadores
nuevos en Acaray
II

0

0.03

2B

Reemplazo del
rodete de Acaray
I/generadores
nuevos en Acaray
II

2.9

0.14

3

Mejora de Acaray
I/generadores
nuevos en Acaray
II

3.6

0.14

4

Mejora de Acaray
I e II

5.9

0.03

5

Acaray III (90
MW)

8.5

0.99

6

Yguazú (70 MW)

22.9

1.07

7

Acaray III (90
MW) y Yguazú
(70 MW)

24.7

1.81

Aumento del generador (%)

1

20
19
18
17
16
15
14
13
12
11
10

Carga 2025

0

20

Carga 2027

Carga 2034

40 60 80 100 120 140 160 180 200
Capacidad de Yguazú (MW)

figura 10. Aumento de la generación para los varios
tamaños de la central en la presa de Yguazú.
50	

ieee power & energy magazine 	

✔✔ posición de la compuerta de paso,
✔✔ concentración del colorante, y
✔✔ presión diferencial de Winter-Kennedy.

El tercer equipo estaba ubicado en la sala de control. Los
cambios de carga fueron realizados en el lugar por un operador de la ANDE, y el punto de funcionamiento se mantuvo
constante con mediciones del flujo, la potencia y el nivel de
agua estabilizados durante cada prueba. Las mediciones de
potencia se registraron en la sala de control durante cada
punto de prueba.
Después de la prueba, se llevó a cabo un análisis fluorométrico para hacer un análisis comparativo preciso de la
cantidad de colorante (fluorescencia) en las muestras. Este
análisis buscaba determinar la concentración de colorante en
el agua de la muestra, que se utiliza para calcular el caudal
absoluto.
Una vez finalizado el análisis de los datos, se generaron
curvas de eficiencia de las turbinas para cada central. Estas
curvas se compararon con curvas hipotéticas de eficiencia
de turbinas mejoradas para estimar los aumentos de ingresos
en las diversas opciones de mejora. Una muestra de la curva
de eficiencia de la turbina para Acaray II se muestra en la
figura 9. Estas curvas fueron posteriormente utilizadas por
el modelo de planificación a largo plazo (Vista DSS) para
calcular los aumentos de ingresos en las opciones de mejora,
como se describe en las siguientes secciones.

Análisis del sistema a largo plazo
(Vista DSS)
Estudio del mercado energético
El análisis consideró ocho opciones, incluidas las diversas
mejoras y los nuevos desarrollos de centrales eléctricas.
Cada opción fue analizada en busca de ingresos adicionales de energía y generación empleando el modelo de Planificación de Generación de Energía descrito en la sección
"Objetivos y metodología". Todas las ejecuciones tenían

Beneficios económicos (%)

prueba de caudal absoluto. El sistema de adquisición de
datos se utilizó para medir las siguientes señales (figura 8):
✔✔ presión de entrada de la turbina,
✔✔ nivel del agua de descarga,

4.5
4
3.5
3
2.5
2
1
0.5
0

0

20

40 60 80 100 120 140 160 180 200
Capacidad de Acaray III (MW)

Carga 2025

Carga 2027

Carga 2034

figura 11. Ventajas económicas en función del tamaño
de la central en Acaray III.
septiembre/octubre 2020



IEEE Power & Energy Magazine - Spanish - September/October 2020

Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - Spanish - September/October 2020

Contents
IEEE Power & Energy Magazine - Spanish - September/October 2020 - Cover1
IEEE Power & Energy Magazine - Spanish - September/October 2020 - Cover2
IEEE Power & Energy Magazine - Spanish - September/October 2020 - Contents
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IEEE Power & Energy Magazine - Spanish - September/October 2020 - Cover3
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