.ComplexLib.SinglePhase.Basic.Transformers.VariableSimpleTransformer

Information

The VariableSimpleTransformer component is a two-port with variable parameters consisting of two ideal inductors (having no resistance). Between these inductors, there exists a non-ideal coupling. The left port voltage phasor v1, the left port current phasor i1, the right port voltage phasor v2, and the right port current phasor i2 are connected by the following relations:

      v1 = jω*(L1*i1+M*i2),
      v2 = jω*(M*i1+L2*i2),
where M²<L1*L2 is always assumed. The parameters L1 and L1 denote the primary and secondary self inductances, respectively, while M is called mutual (or coupling) inductance.
The values of the inductances are specified by independent input signals.

Attention!!!
To ensure that the phasor domain-based model works in a quasi-stationary mode, all inductances may alter only very slowly in comparison with both the nominal frequency f=ω/(2π) and the dominant time constant of the phasor domain-based model.

Remark:
It is required that M² < L1*L2, otherwise an assertion is raised.

Main Author:
Olaf Enge-Rosenblatt
Fraunhofer IIS/EAS, Dresden
email: olaf.enge@eas.iis.fraunhofer.de


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