modelACACConverter

AC AC converter single phase systems

Extends from Buildings.Electrical.Icons.RefAngleConversion (Icon that represents if the angle symble should be displayed or not), Buildings.Electrical.Interfaces.PartialConversion (Model representing a generic two port system for conversion).

Information

This is an AC/AC converter, based on a power balance between both circuit sides. The parameter conversionFactor defines the ratio between the RMS voltages as

V₂ = conversionFactor V₁

where V₁ and V₂ are the RMS voltages at the primary and secondary sides of the transformer, i.e., the connector N and P, respectively.

The loss of the converter is proportional to the power transmitted. The parameter eta is the efficiency of the transfer. The loss is computed as

P_loss = (1-η) P_tr,

where P_tr is the power transmitted. The model is bi-directional and the power can flow from the primary to the secondary side and vice-versa. Furthermore, reactive power on both side are set to zero.

Note:

This model is derived from Modelica.Electrical.QuasiStatic.SinglePhase.Utilities.IdealACDCConverter.

Parameters

Type	Name	Default	Description
Real	conversionFactor		Ratio of QS rms voltage on side 2 / QS rms voltage on side 1
Real	eta		Converter efficiency, pLoss = (1-eta) * Ptr
Ground › side 1
Boolean	ground_1	false	If true, connect side 1 of converter to ground
Ground › side 2
Boolean	ground_2	true	If true, connect side 2 of converter to ground

Connectors

Type	Name	Default	Description
Buildings.Electrical.Interfaces.BaseTerminal	terminal_n (from PartialBaseTwoPort)		Electric terminal side p
Buildings.Electrical.Interfaces.BaseTerminal	terminal_p (from PartialBaseTwoPort)		Electric terminal side n

Components

Type	Name	Description
Modelica.Units.SI.Voltage	v_p (from PartialConversion)	Voltage drop between the two positive pins
Modelica.Units.SI.Voltage	v_n (from PartialConversion)	Voltage drop between the two negative pins
Modelica.Units.SI.Current	i_p (from PartialConversion)	Current flowing through the positive pins
Modelica.Units.SI.Current	i_n (from PartialConversion)	Current flowing through the negative pins
Modelica.Units.SI.Power[2]	LossPower	Loss power

Revisions

January 30, 2019, by Michael Wetter:
Added missing replaceable for the terminal.
September 4, 2014, by Michael Wetter:
Revised model.
August 5, 2014, by Marco Bonvini:
Revised documentation.
June 9, 2014, by Marco Bonvini:
Revised implementation and added stateSelect statement to use the current i[:] on the connectors as iteration variable for the initialization problem.
January 29, 2012, by Thierry S. Nouidui:
First implementation.