Creating schedules with ruby

asked 2023-01-31 21:51:14 -0600

HoussemYounes
271 ●3 ●5

Hello, I am writing a measure in openstudio that takes user inputs about start and end times of charging of a system. I want to recreate the following compact schedule in Ruby with times 7:00, 17:00, 24:00 being user inputs.

Schedule:Compact,
ChargeSchedule,          !- Name
On/Off,                  !- Schedule Type Limits Name
Through: 12/31,          !- Field 1
For: Weekdays,           !- Field 2
Until: 7:00, 1,          !- Field 4
Until: 17:00, 0,         !- Field 6
Until: 24:00, 1,         !- Field 8
For: Weekends Holidays,  !- Field 9
Until: 24:00, 1,         !- Field 11
For: AllOtherDays,       !- Field 12
Until: 24:00, 1;         !- Field 14

I will then create a sensor to get the schedule value (the authorization to charge my system) for my calculation.

This what i've written so far

# Get user inputs
  charge_start = runner.getStringArgumentValue('charge_start', user_arguments)
  charge_end = runner.getStringArgumentValue('charge_end', user_arguments

# Convert HR:MM format into HR.fraction format
(c_start_hr, c_start_min) = charge_start.split(':')
(c_end_hr, c_end_min) = charge_end.split(':')
# Store re-formatted time values in shorthand variables for use in schedule building  cs: charge start , ce:charge end 
  cs = (c_start_hr.to_f + c_start_min.to_f / 60).round(2)
      ce = (c_end_hr.to_f + c_end_min.to_f / 60).round(2)

#Create Schedule Type Limits
  sched_limits_onoff = OpenStudio::Model::ScheduleTypeLimits.new(model)
      sched_limits_onoff.setName('OnOff')
      sched_limits_onoff.setNumericType('Discrete')
      sched_limits_onoff.setUnitType('Availability')
      sched_limits_onoff.setLowerLimitValue(0.0)
      sched_limits_onoff.setUpperLimitValue(1.0)

    # Create the Compact Schedule   
  charge_schedule = OpenStudio::Model::ScheduleCompact.new(model)
  charge_schedule.setName('Charge_Schedule')
  charge_schedule.setScheduleTypeLimitsName(sched_limits_onoff.handle.to_s)

Any indications on how to continue from here ?

Thanks

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answered 2023-02-07 09:08:15 -0600

HoussemYounes
271 ●3 ●5

I wanted to create the Schedules programatically using only user arguments supplied to my measure. I eventually opted for a different approach, instead of using user argument to create the custom schedules and then get the schedule values via sensors, I use the arguments directly in my EMS program combined with conditional statements, for example :

IF (CurrentTime >= #{cs}) && (CurrentTime <= #{ce})
    SET #{charging_auth.name} = 1
ELSE
    SET #{charging_auth.name} = 0 
ENDIF

IF (Month == #{drm}) && (DayOfMonth == #{drd}) && (CurrentTime>= #{drst})&& (CurrentTime<=#{dret}) 
    SET DR_flag = 1 
    SET #{atc_charging_auth.name} = 0 
    SET #{atc_discharging_auth.name} = 1
ELSE 
    SET DR_flag = 0 
ENDIF

It does the trick

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answered 2023-02-02 08:59:51 -0600

shorowit

11931 ●203 ●9 https://www.nrel.gov/b...

I'm not exactly answering your question here, but the most common way of creating schedules in OpenStudio is to use the ScheduleRuleset object. It is flexible, easy to use, and you can visually inspect the schedules in the OpenStudio application. You can also find lots of examples of using it. With the object, you create one or more ScheduleRules, where each rule contains a start/end date, what days of the week it applies to, and a value. (It will translate to a Schedule:Year, not a Schedule:Compact, in the IDF.)

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I was looking into the ScheduleRulset object, it's quite easy to use in the GUI but I wanted to create it programatically, I eventually opted for EMS, it works for my application (my comment above). Thank you!