GE DMC490 Software Configuration Manual page 31

Status Points
The following field mappings apply to the status and read only inputs that are to be mapped to the Microgrid
controller > Storage Asset configuration page:
• Input Online: This field indicates if the storage input is online or offline. For hydrogen storage, which is
interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell, Input
Online represents the offline/online status of the electrolyzer. Being online is not necessarily the same
as being available for use in the MGC optimization calculations.
•
Output Online: This field indicates if the storage output is online or offline. For hydrogen storage,
which is interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell,
Output Online represents the offline/online status of the fuel cell. Being online is not necessarily the
same as being available for use in the MGC optimization calculations.
• Input Availability: Input availability is declared by the storage device. It indicates if the storage input
can be controlled by the MGC and included in the optimization problem solved by the MGC. The
availability signal is built into the storage local controller based on some parameters and is read by the
MGC. For hydrogen storage, which is interpreted as the combination of electrolyzer, high-pressure
storage cylinders, and fuel cell, Input Availability represents the availability of the electrolyzer. An
online storage resource is not necessarily an available storage resource.
• Output Availability: Output availability is declared by the storage device. It indicates if the storage
output can be controlled by the MGC and included in the optimization problem solved by the MGC. The
availability signal is built into the storage local controller based on some parameters and is read by the
MGC. For hydrogen storage, which is interpreted as the combination of electrolyzer, high-pressure
storage cylinders, and fuel cell, Output Availability represents the availability of the fuel cell. An online
storage resource is not necessarily an available storage resource.
• Net Meter Power In: This is the net metered input power, in kW. It indicates the input/charging power
value read from the storage device. For hydrogen storage, which is interpreted as the combination of
electrolyzer, high-pressure storage cylinders, and fuel cell, Net Meter Power In represents the
measured value of the electrolyzer input/charging power.
• Net Meter Power Out: This is the net metered output power, in kW. This field indicates the
output/discharging power value read from the storage device. For hydrogen storage, which is
interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell, Net Meter
Power Out represents the measured value of the fuel cell output/discharging power.
•
SOC: This field indicates storage state of charge, in kWh.
The following field mappings apply to the AO/DO control points that are to be mapped to the Microgrid
controller > Storage Asset configuration page:
•
Input Start: This field represents the start command for storage charging. For hydrogen storage,
which is interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell,
Input Start corresponds to the electrolyzer start command.
• Output Start: This field represents the start command for storage discharging. For hydrogen storage,
which is interpreted as the combination of electrolyzer, high-pressure storage cylinders, and fuel cell,
Output Start corresponds to the fuel cell start command.
• Power Ref In: This field reflects the reference input power of the storage device. It is the value decided
by the MGC for the storage charging power. For hydrogen storage, which is interpreted as the
combination of electrolyzer, high-pressure storage cylinders, and fuel cell, Power Ref In represents the
command for electrolyzer input/charging power.
•
Power Ref Out: This field reflects the reference output power of the storage device. It is the value
decided by the MGC for the storage discharging power. For hydrogen storage, which is interpreted as
the combination of electrolyzer, high-pressure storage cylinders, and fuel cell, Power Ref Out
represents the command for fuel cell output/discharging power.
DMC490 Configuration
31