DQCurrentController
Current controller in dq coordinate system
Library
Modelica/Electrical/Machines/Utilities
Description
Simple Current controller
The desired d- and q-component of the space phasor current in rotor fixed coordinate system are given by inputs id and iq.Using the given rotor position (input phi), the actual three-phase currents are measured and transformed to the d-q coordinate system.Two PI-controllers determine the necessary d- and q- voltages, which are transformed back to three-phase (output y[3]).They can be used to feed a voltage source which in turn feeds a permanent magnet synchronous machine.
Inputs d and q can be given either as peak values (useRMS=false) or as RMS (useRMS=true).The correction by factor √2 is done automatically.The measured currents iActual[m] are assumed to be instantaneous values.
Note: No care is taken for current or voltage limiting, as well as for field weakening.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_p | p | Number of pole pairs | Scalar | |
mo_useRMS | useRMS | If true, inputs dq are multiplied by sqrt(2) | Scalar | true |
mo_fsNominal | fsNominal | Nominal frequency | Scalar | |
mo_VsOpenCircuit | VsOpenCircuit | Open circuit RMS voltage per phase @ fsNominal | Scalar | |
mo_Rs | Rs | Stator resistance per phase | Scalar | |
mo_Ld | Ld | Inductance in d-axis | Scalar | |
mo_Lq | Lq | Inductance in q-axis | Scalar | |
mo_decoupling | decoupling | Use decoupling network | Scalar | true |
mo_psiM | psiM | Approximation of magnetic flux linkage | Scalar | |
mo_nout | nout | Number of outputs | Scalar |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo__nmodifiers | Number of Modifiers | Specifies the number of modifiers | Number | |
mo__modifiers | Modifiers | Add new modifier | Structure | |
mo__modifiers/varname | Variable name | Cell of strings | 'omega' | |
mo__modifiers/attribute | Attribute | Cell of strings | 'start' | |
mo__modifiers/value | Value |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
y | implicit | Connector of Real output signals | output | 1 |
id | implicit | Reference of d-current | input | 1 |
iq | implicit | Reference of q-current | input | 2 |
phi | implicit | Rotor angle | input | 3 |
iActual | implicit | Measured three-phase currents | input | 4 |