blockVfController
Voltage-Frequency controller
Extends from Modelica.Blocks.Interfaces.SIMO (Single Input Multiple Output continuous control block).
Information
Simple Voltage-Frequency controller.Amplitude of voltage is linear dependent (VNominal/fNominal) on frequency (input signal "u"), but limited by VNominal (nominal RMS voltage per phase).
m sine-waves with amplitudes as described above are provided as output signal "y".
By setting parameter EconomyMode=true, Voltage rises quadratically with frequency which means flux,torque and loss reduction for fan and pump drives.
The sine-waves are intended to feed a m-phase SignalVoltage.
Phase shifts between sine-waves may be chosen by the user; default values are (k-1)/m*pi for k in 1:m.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nout (from SIMO) | 1 | Number of outputs |
| Integer | m | 3 | Number of phases |
| SI.Angle[m] | orientation | -Modelica.Electrical.Polyphase.Functions.symmetricOrientation(m) | Orientation of phases |
| SI.Voltage | VNominal | Nominal RMS voltage per phase | |
| SI.Frequency | fNominal | Nominal frequency | |
| SI.Angle | BasePhase | 0 | Common phase shift |
| Boolean | EconomyMode | false | Economy mode: voltage quadratic dependent on frequency |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| RealInput | u (from SIMO) | Connector of Real input signal | |
| RealOutput[nout] | y (from SIMO) | Connector of Real output signals |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Angle | x | Integrator state | |
| SI.Voltage | amplitude |