Models that can represent sensors used in a real power system
Extends from Modelica.Icons.SensorsPackage (Icon for packages containing sensors).
Name | Description |
---|---|
PwVoltage | Voltage sensor |
SoftPMU | Model of a PMU measuring phasors on a line |
Voltage sensor
Model of a PMU measuring phasors on a line
This device can be used to simulate a Phasorial Measurement Unit (PMU) designed for estimating the grid's frequency at a local node. Frequency estimates are provided given the following: initial conditions for the node's voltage phasor; nominal frequency value; and time constant associated with the smoothing filter used in derivative calculations.
The calculated frequency is just an estimate and can deviate by a certain margin of error.
Name | Description |
---|---|
Initialization | |
v_0 | Voltage magnitude initial value [1] |
angle_0 | Voltage angle initial value [rad] |
PMU parameters | |
Ts | Derivative smoothing filter time constant [s] |
fn | System base frequency [Hz] |
Name | Description |
---|---|
p | the positive direction of the current is from connector p ... |
n | ... and to connector n |