modelInverterAverage

Inverter time-average, 1-phase

Extends from Partials.SwitchEquation (Switch equation, 1-phase).

Information

Four quadrant time-averaged inverter. Fulfills the power balance:

  vAC*iAC = vDC*iDC

The structure of this component is related that of a voltage source, with two minor differences:

1) theta is used instead of omega as input.

2) u_phasor is used instead of v_phasor defining the AC-voltage in terms of the DC voltage v_DC according to the following relations.

If equivalent to sine modulation:

  v_AC_eff = u*v_DC/sqrt(2)     AC effective voltage

  u[1] &le  1 for pure sine-modulation, but u[1] >  1 possible.
  u[1] = 1 corresponds to:  AC amplitude = v_DC

If equivalent to block (rectangular) modulation:
Note that this component works with the fundamental of the rectangular voltage.
The method must be improved in this case (in particular in context with inductive devices).

  v_AC_eff = u*(4/pi)*sin(width*pi/2)*v_DC/sqrt(2)    AC eff voltage of fundamental

  u[1] = 1 for block modulation without pwm, 0 <  width <  1
  u[1] &le  1 for block modulation with pwm.
  u[1] = 1 corresponds to AC amplitude = (4/pi)*sin(width*pi/2)*v_DC

Parameters

Type	Name	Default	Description
Semiconductors.Ideal.SCparameter	par		SC parameters
Integer	modulation	1	equivalent modulation :
Boolean	syn	false	synchronous, asynchronous
Integer	m_carr	1	f_carr/f, pulses/period
SI.Frequency	f_carr	1e3	carrier frequency
Real	width0	2/3	relative width, (0 - 1)

Connectors

Type	Name	Description
Base.Interfaces.ElectricV_n	AC (from AC_DC_base)	AC connection
Base.Interfaces.ElectricV_p	DC (from AC_DC_base)	DC connection
Base.Interfaces.ThermalV_n	heat (from AC_DC_base)	vector heat port
Modelica.Blocks.Interfaces.RealInput	theta	abs angle, der(theta)=omega
Modelica.Blocks.Interfaces.RealInput	uPhasor	desired {abs(u), phase(u)}