Delta-Connected Variable Load
Three-phase variable load connected according to the Triangle scheme.
blockType: AcausalElectricPowerSystems.Passive.RLC_Assemblies.DeltaConnectedVariableLoad
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Description
Block Delta-Connected Variable Load simulates a variable three-phase load connected by a triangle. Each phase of the load contains a resistor. The unit calculates the resistance required to obtain active power equal to the value on the input port P at a given rated voltage. Thus, the block can represent an active load.
To ensure that the resistance is always greater than zero, the minimum active power consumed by the load is set. The minimum active power must be greater than zero.
Equations
Resistance is defined as follows:
Where:
— sequential resistance of each phase.
— RMS rated line voltage.
— Required three-phase active power.
If the value on the input port P is less than the value of the parameter Minimum real power, the unit uses the minimum active power to calculate the resistance.
Parameters
Main
Rated voltage — rated line voltage
24e3 V (by default)
The RMS value of the nominal line voltage for the resistance equation.
Minimum real power — minimum active power
1e3 W (by default)
The minimum active power that a three-phase load dissipates when the rated voltage is applied. The value must be greater than 0.