See Also
This sub-page is found on the Input page of the Time Step Simulation dialog and is used to display all of the schedule subscriptions and their properties. Once a schedule has been created, we can assign an object field, such as the status of a transmission line or the MW output of a generator to the schedule by means of a Schedule Subscription. The object field will follow the schedule "shape" in time. The use of Schedule and Schedule Subscription objects gives us great flexibility in specifying how quantities should vary.
The most relevant options of the local menu, obtained by right-clicking on the grid of this page are:
Schedule Subscriptions Page Local Menu Actions
Insert New Subscription
Use this option to define a new schedule subscription through the Schedule Subscription Dialog.
Delete
This option deletes the current schedule subscription.
Show Dialog
This option brings up the Schedule Subscription Dialog with the information of the current schedule subscription.
Schedule Subscriptions Page Fields
The Schedule Subscriptions Page shows the following information:
Object
Object Type: Generator, Load, Line/Transformer, Shunt, Area, Transaction, Zone, Interface, or DC Line
Object IDs
Are explained in the following table:
|
Object Type |
Object ID1 (Numeric) |
Object ID2 Numeric |
Object ID3 String[2] |
|
Generator |
Bus Number |
|
Gen ID |
|
Load |
Bus Number |
|
Load ID |
|
Line/Transformer |
From Bus Number |
To Bus Number |
Circuit ID |
|
Shunt |
Bus Number |
|
Shunt ID |
|
Area |
Area Number |
|
|
|
Transaction |
From Area Number |
To Area Number |
ID |
|
Zone |
Zone Number |
||
|
Interface |
Interface Number |
||
|
DC Line |
Rectifier Number |
Inverter Number |
ID |
Object Field
Field that subscribes to the schedule.
Schedule Name
Name portion of the schedule name and suffix identifier.
Schedule Suffix
Suffix portion of the schedule name and suffix identifier.
Active
Set this to YES so that the schedule values will actually be applied to the power system.
Relative
If this is NO the field takes the exact schedule values. If this is YES the schedule takes the value of the schedule scaled by a multiplier plus Value Shift.
Multiplier
Scaling factor used when the subscription is Relative.
Value Shift
Shift value used when the subscription is Relative.
Delay/Advance?
Indicates if the schedule should be delayed or advanced to a new point indicated by the shift values. A delay will cause the schedule to start later in time. An advance will cause the schedule to start earlier in time. See the Schedule Subscription Dialog for more details on this option.
Day Shift
Number of days of the schedule time delay/advance.
Hour Shift
Number of hours of the schedule time delay/advance.
Minute Shift
Number of minutes of the schedule time delay/advance.
Second Shift
Number of seconds of the schedule time delay/advance.
Schedule Subscriptions can be saved and loaded from auxiliary files using options found on the local menu obtained by right-clicking on the table or using the case information toolbar.