modelACmachine

AC machine base, 3-phase abc

Extends from Ports.YDport_p (AC one port Y or Delta topology 'positive').

Information

Contains the pole-pair transformation

  pp*airgap.phi = phi_el;
  airgap.tau = -pp*tau_el;

between the 'electrical' variables phi_el and tau_el and the 'mechanical' variables airgap.phi and airgap.tau.
The connector 'airgap' transfers the electromagnetic rotor-torque to the mechanical system.

The electric reference frame can specified by the machine rotor. Use this choice ONLY if really necessary and care about restrictions. Choosing

  isRef = true

induces

  term.theta = {-phi_el_ini, phi_el}

and therefore

  omega = {0, w_el}

not allowing steady-state initialisation for asynchronous machines. Note that

  phi_el = pole_pair_number*phi_mechanical

More info see at 'Machines.Asynchron' and 'Machines.Synchron'.

Parameters

Type	Name	Default	Description
Integer	pp	1	pole-pair number
Boolean	stIni_en	true	enable steady-state initial equation
SI.Angle	phi_el_ini	0	initial rotor angle electric
SI.AngularVelocity	w_el_ini	0	initial rotor angular velocity el

Connectors

Type	Name	Description
Base.Interfaces.ACabc_p	term (from Port_p)	positive terminal
Base.Interfaces.Rotation_n	airgap	electro-mechanical connection
Base.Interfaces.ThermalV_n	heat	heat source port {stator, rotor}

Components

Type	Name	Default	Description
Topology.Y	top (from YDport_p)		Y or Delta topology
SI.Voltage	v (from YDport_p)	top.v_cond	voltage conductor
SI.Current	i (from YDport_p)	top.i_cond	current conductor
SI.Voltage	v_n (from YDport_p)	top.v_n	voltage neutral
SI.Current	i_n (from YDport_p)	top.i_n	current neutral to ground
SI.Angle	phi_el		rotor angle electric (syn: +pi/2)
SI.AngularVelocity	w_el		rotor angular velocity el
SI.Torque	tau_el		electromagnetic torque

Name	Description
atan2protected

modelACmachine

Information

Parameters

Connectors

Components

Contents