Simcenter Amesim How can I use conditional statements in Global Parameters?

In Simcenter Amesim, you cannot create conditional statements using the If-then(-else) terminology. However, you can use conditions based on Global Parameters values and matching syntax (e.g. x==1 or x!=1).

For example, let's consider setting the solar irradiation value based on the hour of the day:

• Between 8 pm and 8 am: 0 W/m**2
• Between 8 am and 12 am: 1000 W/m**2
• Between 12 am and 4 pm: 1500 W/m**2
• Between 4 pm and 8 pm: 1000 W/m**2

To achieve this, first define the daytime in hours and then set the conditions based on this time in the irradiance global parameter using the following expression:

(Time<=8 || Time>20)*0 + (Time>8 && Time<=12  || Time>16 && Time<=20)*1000 + (Time>12 && Time<=16)*1500

Now, depending on the daytime you input, the irradiation will be set based on the rules defined in the expression above:

Day time: 6 hours

Day time: 10 hours

Day time: 14 hours