modelSoftPMU
Model of a PMU measuring phasors on a line
Information
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.
Note
The calculated frequency is just an estimate and can deviate by a certain margin of error.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Initialization | |||
| Types.PerUnit | v_0 | 1 | Voltage magnitude initial value |
| Types.Angle | angle_0 | 0 | Voltage angle initial value |
| PMU parameters | |||
| Types.Time | Ts | 0.01 | Derivative smoothing filter time constant |
| Types.Frequency | fn | SysData.fn | System base frequency |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| OpenIPSL.Interfaces.PwPin | p | the positive direction of the current is from connector p ... | |
| OpenIPSL.Interfaces.PwPin | n | ... and to connector n |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| OpenIPSL.Electrical.SystemBase | SysData | ||
| Types.PerUnit | Vr | p.vr | real part of the voltage phasor |
| Types.PerUnit | Vi | p.vi | imaginary part of the voltage phasor |
| Types.PerUnit | Ir | p.ir | real part of the current phasor |
| Types.PerUnit | Ii | p.ii | imaginary part of the current phasor |
| Types.Frequency | freq | frequency estimate | |
| NonElectrical.Nonlinear.FrequencyCalc | fCalc |