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Saturable transformer

This block implements an saturable transformer.

The equivalent circuit is shown in the figure below:

The circuit is same than the Single Phase Ideal Two Winding Transformer, except that the magnetizing inductance has been replaced by its saturated version, which model consists of a controlled current source in parallel with an RC snubber. The value of the generated current is determined by the voltage measured across it.

Parameters

Parameters

 

Primary nominal voltage value (V1)

Primary nominal voltage value in volts (V)

Primary winding resistance (R1)

Primary winding resistance value in ohm (Ω).

Primary winding leakage inductance (L1)

Primary winding leakage inductance value in Henries (H).

Primary initial current (I1)

Primary winding initial current in amperes (A)

Secondary nominal voltage value (V2)

Secondary nominal voltage value in volts (V)

Secondary winding resistance (R2)

Secondary winding resistance value in ohm (Ω).

Secondary winding leakage inductance (L2)

Secondary winding leakage inductance value in Henries (H).

Secondary initial voltage (I2)

Secondary winding initial current in amperes (A)

Core loss resistance (Rm)

Magnetization branch equivalent resistance value in ohm (Ω).

Saturation characteristic (φ=f(Im))

Saturation profile of the magnetizing inductance of the transformer (more details).

Initial flux (φ0)

Initial flux in weber (Wb)

Snubber resistance (Rsn)

Snubber resistance value in ohm (Ω).

Snubber Inductance (Lsn)

Snubber inductance value in henry (H).

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