A generating unit whose prime mover is a hydraulic turbine (e.g., Francis, Pelton, Kaplan).
No Additional PropertiesThe generating unit's Operator-approved current operating schedule (or plan), typically produced with the aid of unit commitment type analyses. The X-axis represents absolute time. The Y1-axis represents the status (0=off-line and unavailable: 1=available: 2=must run: 3=must run at fixed power value: etc.). The Y2-axis represents the must run fixed power value where required.
No Additional PropertiesThe aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy.
The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.
Used in RAVENS Schema to identify the corresponding CIM Object Type of the JSON object.
The time between each pair of subsequent regular time points in sequence order.
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Time, in seconds
The time for the first time point. The value can be a time of day, not a specific date.
Value1 units of measure.
Multiplier for value2.
Value2 units of measure.
Multiplier for value1.
The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy.
The time for the last time point. The value can be a time of day, not a specific date.
Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended.
For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements.
The name is any free human readable and possibly non unique text naming the object.
Array of GenUnitOpCostCurve objects
No Additional ItemsRelationship between unit operating cost (Y-axis) and unit output active power (X-axis). The operating cost curve for thermal units is derived from heat input and fuel costs. The operating cost curve for hydro units is derived from water flow rates and equivalent water costs.
No Additional PropertiesFlag is set to true when output is expressed in net active power.
The style or shape of the curve.
Multiplier for X-axis.
The X-axis units of measure.
Used in RAVENS Schema to identify the corresponding CIM Object Type of the JSON object.
Multiplier for Y1-axis.
The Y1-axis units of measure.
Multiplier for Y2-axis.
Multiplier for Y3-axis.
The Y3-axis units of measure.
The Y2-axis units of measure.
The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy.
The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy.
The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.
Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended.
For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements.
The name is any free human readable and possibly non unique text naming the object.
Governor motor position limit.
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Governor Speed Changer Droop. This is the change in generator power output divided by the change in frequency normalized by the nominal power of the generator and the nominal frequency and expressed in percent and negated. A positive value of speed change droop provides additional generator output upon a drop in frequency.
Normally 0 to 100 on a defined base.
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Type of turbine.
The height water drops from the reservoir mid-point to the turbine.
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High limit for secondary (AGC) control.
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Low limit for secondary (AGC) control.
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Generating unit long term economic participation factor.
Maximum high economic active power limit, that should not exceed the maximum operating active power limit.
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Maximum allowable spinning reserve. Spinning reserve will never be considered greater than this value regardless of the current operating point.
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This is the maximum operating active power limit the dispatcher can enter for this unit.
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Default initial active power which is used to store a powerflow result for the initial active power for this unit in this network configuration.
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Minimum time interval between unit shutdown and startup.
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Time, in seconds
This is the minimum operating active power limit the dispatcher can enter for this unit.
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Detail level of the generator model data.
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The nominal power of the generating unit. Used to give precise meaning to percentage based attributes such as the governor speed change droop (governorSCD attribute).
The attribute shall be a positive value equal to or less than RotatingMachine.ratedS.
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Generating unit economic participation factor. The sum of the participation factors across generating units does not have to sum to one. It is used for representing distributed slack participation factor. The attribute shall be a positive value or zero.
Defined as: 1 / ( 1 - Incremental Transmission Loss); with the Incremental Transmission Loss expressed as a plus or minus value. The typical range of penalty factors is (0.9 to 1.1).
The normal maximum rate the generating unit active power output can be raised by control actions.
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The unit's gross rated maximum capacity (book value).
The attribute shall be a positive value.
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The gross rated minimum generation level which the unit can safely operate at while delivering power to the transmission grid.
The attribute shall be a positive value.
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The net rated maximum capacity determined by subtracting the auxiliary power used to operate the internal plant machinery from the rated gross maximum capacity.
The attribute shall be a positive value.
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The normal maximum rate the generating unit active power output can be lowered by control actions.
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Generating unit short term economic participation factor.
The initial startup cost incurred for each start of the GeneratingUnit.
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Time it takes to get the unit on-line, from the time that the prime mover mechanical power is applied.
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Time, in seconds
Generating unit economic participation factor.
The variable cost component of production per unit of ActivePower.
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The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy.
Energy conversion capability for generating.
The equivalent cost of water that drives the hydro turbine.
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Low economic active power limit that shall be greater than or equal to the minimum operating active power limit.
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The aggregate flag provides an alternative way of representing an aggregated (equivalent) element. It is applicable in cases when the dedicated classes for equivalent equipment do not have all of the attributes necessary to represent the required level of detail. In case the flag is set to “true” the single instance of equipment represents multiple pieces of equipment that have been modelled together as an aggregate equivalent obtained by a network reduction procedure. Examples would be power transformers or synchronous machines operating in parallel modelled as a single aggregate power transformer or aggregate synchronous machine.
The attribute is not used for EquivalentBranch, EquivalentShunt and EquivalentInjection.
The equipment is enabled to participate in network analysis. If unspecified, the value is assumed to be true.
The efficiency of the unit in converting the fuel into electrical energy.
Normally 0 to 100 on a defined base.
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Specifies the availability of the equipment under normal operating conditions. True means the equipment is available for topology processing, which determines if the equipment is energized or not. False means that the equipment is treated by network applications as if it is not in the model.
Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended.
For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements.
The name is any free human readable and possibly non unique text naming the object.
Specifies the availability of the equipment. True means the equipment is available for topology processing, which determines if the equipment is energized or not. False means that the equipment is treated by network applications as if it is not in the model.
Used in RAVENS Schema to identify the corresponding CIM Object Type of the JSON object.
The planned unused capacity (spinning reserve) which can be used to support emergency load.
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The planned unused capacity which can be used to support automatic control overruns.
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For dispatchable units, this value represents the economic active power basepoint, for units that are not dispatchable, this value represents the fixed generation value. The value shall be between the operating low and high limits.
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Unit control error deadband. When a unit's desired active power change is less than this deadband, then no control pulses will be sent to the unit.
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Pulse high limit which is the largest control pulse that the unit can respond to.
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Time, in seconds
Pulse low limit which is the smallest control pulse that the unit can respond to.
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Time, in seconds
Unit response rate which specifies the active power change for a control pulse of one second in the most responsive loading level of the unit.
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The efficiency of the unit in converting mechanical energy, from the prime mover, into electrical energy.
Normally 0 to 100 on a defined base.
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The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy.
The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.
The unit control mode.
The source of controls for a generating unit. Defines the control status of the generating unit.