QuasiStatic Vf Controller

Voltage-Frequency Controller

 Description The QuasiStatic Vf Controller component is a simple voltage-frequency controller. The amplitude of the voltage is linearly dependent ($\frac{{V}_{\mathrm{nom}}}{{f}_{\mathrm{nom}}}$) on the frequency (input signal $u$), but limited by ${V}_{\mathrm{nom}}$ (nominal RMS voltage per phase). An $m$ quasistatic phasor signal is provided as output signal $y$, representing complex voltages. The output voltages may serve as inputs for complex voltage sources with phase input. Symmetrical voltages are assumed.
 Equations $y=\mathrm{Modelica.ComplexMath.fromPolar}\left(\mathrm{fill}\left(\mathrm{amplitude},m\right),\mathrm{orientation}+\mathrm{fill}\left(\mathrm{BasePhase}-\frac{\mathrm{\pi }}{2},m\right)\right)$ $\mathrm{amplitude}={V}_{\mathrm{nom}}\left\{\begin{array}{cc}\frac{\left|u\right|}{{f}_{\mathrm{nom}}}& \left|u\right|<{f}_{\mathrm{nom}}\\ 1& \mathrm{otherwise}\end{array}$

Variables

 Name Value Units Description Modelica ID $\mathrm{amplitude}$ $V$ amplitude

Connections

 Name Description Modelica ID $y$ Complex quasistatic voltages (RMS) y $u$ Frequency input (Hz) u

Parameters

 Name Default Units Description Modelica ID $m$ $3$ Number of phases m Orientation [1] $\mathrm{rad}$ Orientation of phases orientation ${V}_{\mathrm{nom}}$ $V$ Nominal RMS voltage per phase VNominal ${f}_{\mathrm{nom}}$ $\mathrm{Hz}$ Nominal frequency fNominal Base Phase $0$ $\mathrm{rad}$ Common phase shift BasePhase

[1] $-\mathrm{Modelica}\cdot \mathrm{Electrical}\cdot \mathrm{MultiPhase}\cdot \mathrm{Functions}\cdot \mathrm{symmetricOrientation}\left(m\right)$

 Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.