TwoTerminalGenericHVDCLine

Package: PowerOperationsOpenAPIModels · Source: Operations/Branch/TwoTerminalGenericHVDCLine.json

A High Voltage DC line, which must be connected to an ACBus on each end. This model is appropriate for operational simulations with a linearized DC power flow approximation with losses proportional to the power flow. For modeling a DC network, see TModelHVDCLine.

Properties

Property	Type	Required	Unit	Description
id	integer	yes	—	Unique integer identifier for this component.
name	string	yes	—	Name of the component. Components of the same type (e.g., PowerLoad) must have unique names, but components of different types (e.g., PowerLoad and ACBus) can have the same name.
available	boolean	yes	—	Indicator of whether the component is connected and online (true) or disconnected, offline, or down (false). Unavailable components are excluded during simulations.
active_power_flow	number	yes	MW / pu (by power_units)	Initial condition of active power flow on the line. Units: per power_units — NATURAL_UNITS: MW, COMPONENT_BASE: pu .
arc	integer	yes	—	An Arc defining this line from a bus to another bus.
rating	number	yes	MVA / pu (by power_units)	Transfer rating of the DC line, independent of the converter ratings at each end. Units: per power_units — NATURAL_UNITS: MVA, COMPONENT_BASE: pu .
rating_from	number	—	MVA / pu (by power_units)	Converter rating in the from bus. Absent means the converter imposes no limit beyond rating. Units: per power_units — NATURAL_UNITS: MVA, COMPONENT_BASE: pu .
rating_to	number	—	MVA / pu (by power_units)	Converter rating in the to bus. Absent means the converter imposes no limit beyond rating. Units: per power_units — NATURAL_UNITS: MVA, COMPONENT_BASE: pu .
operational_flow_limit	OperationalFlowLimit	—	MW / pu (by power_units)	Operator-set minimum and maximum flow in each direction, applied in addition to rating. Absent means no operational limit. Units: per power_units — NATURAL_UNITS: MW, COMPONENT_BASE: pu .
reactive_power_limits_from	MinMax	yes	MVAr / pu (by power_units)	Minimum and maximum reactive power limits to the FROM node. Units: per power_units — NATURAL_UNITS: MVAr, COMPONENT_BASE: pu .
reactive_power_limits_to	MinMax	yes	MVAr / pu (by power_units)	Minimum and maximum reactive power limits to the TO node. Units: per power_units — NATURAL_UNITS: MVAr, COMPONENT_BASE: pu .
loss	LossCurve	—	—	Loss model coefficients. It accepts a linear model with a constant loss and a proportional loss rate (MW of loss per MW of flow). It also accepts a Piecewise loss, with N segments to specify different proportional losses for different segments.
base_power	number	yes	MVA	System base power for per-unitization of this component’s per-unit fields, recorded per component in lieu of a system-level table. Units: MVA.
power_units	string (UnitSystem)	yes	—	Unit basis for this component’s power-family fields (active/reactive/apparent power, ratings, limits, ramp rates). COMPONENT_BASE: per unit on this component’s own base_power. NATURAL_UNITS: the field’s physical unit.