Hi guy,
I try to use the dollar condtion, but with variables this does not
work very well.
In my case, I want to limit a variable depending the state of otehr
variable. For example, I qwant to simulate different discharge steps
in a battery. When a battery has is state of charge between 100% and
70% of its capacity, the price will be 0.1. And if the SoC is in 70%
and 40% the price will be other.
So in my case I need to limit in gams the discharge variable will be
limited by the battery SoC. I’m thinking to use 3 varaible to
discharge power for three discharge steps, the first discharge power
will be activated when the battery SoC is between 100% and 70%, the
second discharge power will be activated when the battery is between
70% and 40%.
the three discharge powers could be used in the same period, because
the battery SoC can pass from 100% until 50%, and this means that it
will be activated 2 discharge steps with two discharge powers. The
battery SoC is another variable, because is determined in each period
adding the charge power and discharge power in each period.
I try to use the dollar condtion but gams give me error
Best regards,
Tiago Sousa
\
Tiago
The problem is not GAMS, is your modelling approach.
Take a look at:
http://home.ubalt.edu/ntsbarsh/opre640a/partIII.htm
under the topic: “Conditional Relations Among Constraints”
Regards
2011/10/17 Tiago Sousa
Hi guy,
I try to use the dollar condtion, but with variables this does not
work very well.
In my case, I want to limit a variable depending the state of otehr
variable. For example, I qwant to simulate different discharge steps
in a battery. When a battery has is state of charge between 100% and
70% of its capacity, the price will be 0.1. And if the SoC is in 70%
and 40% the price will be other.
So in my case I need to limit in gams the discharge variable will be
limited by the battery SoC. I’m thinking to use 3 varaible to
discharge power for three discharge steps, the first discharge power
will be activated when the battery SoC is between 100% and 70%, the
second discharge power will be activated when the battery is between
70% and 40%.
the three discharge powers could be used in the same period, because
the battery SoC can pass from 100% until 50%, and this means that it
will be activated 2 discharge steps with two discharge powers. The
battery SoC is another variable, because is determined in each period
adding the charge power and discharge power in each period.
I try to use the dollar condtion but gams give me error
Best regards,
Tiago Sousa
Edson Valle
edsoncv@gmail.com
–
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Thank you very much, I will read the page and see if I can adapt to my
code.
Regards,
Tiago Sousa
On 18 out, 13:44, Edson Cordeiro do Valle wrote:
Tiago
The problem is not GAMS, is your modelling approach.
Take a look at:http://home.ubalt.edu/ntsbarsh/opre640a/partIII.htm
under the topic: “Conditional Relations Among Constraints”
Regards
2011/10/17 Tiago Sousa
Hi guy,
I try to use the dollar condtion, but with variables this does not
work very well.
In my case, I want to limit a variable depending the state of otehr
variable. For example, I qwant to simulate different discharge steps
in a battery. When a battery has is state of charge between 100% and
70% of its capacity, the price will be 0.1. And if the SoC is in 70%
and 40% the price will be other.
So in my case I need to limit in gams the discharge variable will be
limited by the battery SoC. I’m thinking to use 3 varaible to
discharge power for three discharge steps, the first discharge power
will be activated when the battery SoC is between 100% and 70%, the
second discharge power will be activated when the battery is between
70% and 40%.
the three discharge powers could be used in the same period, because
the battery SoC can pass from 100% until 50%, and this means that it
will be activated 2 discharge steps with two discharge powers. The
battery SoC is another variable, because is determined in each period
adding the charge power and discharge power in each period.
I try to use the dollar condtion but gams give me error
Best regards,
Tiago Sousa
–
“gamsworld” group.
To post to this group, send email to gamsworld@googlegroups.com.
To unsubscribe from this group, send email to
gamsworld+unsubscribe@googlegroups.com.
For more options, visit this group at
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–
Edson Valle
edso...@gmail.com
\