Single Phase Four Winding Transformer

Description of the Single Phase Four Winding Transformer component in Schematic Editor

Figure 1. Single Phase Four Winding Transformer component in Typhoon HIL Schematic Editor

The Single Phase Four Winding Transformer component models four coupled windings on the same core. The magnetization inductance Lm can be linear or with saturation; it is modeled on the primary side of the transformer. Core losses are modeled as Rm resistance located on the primary side of the transformer. Also, it is possible to neglect Lm and Rm by selecting Lm/Rm neglected in the Core model property. For more information, please refer to Core model

A schematic block diagram of the Single Phase Four Winding Transformer block with corresponding component arrangement and naming is shown in Figure 2.

Figure 2. Schematic block diagram of Single Phase Four Winding Transformer with corresponding component naming

Embedded coupling

There are two possible options for embedded coupling in the single phase four winding transformer, Ideal Transformer based coupling and TLM coupling.

  • Ideal Transformer Embedded coupling type is ignored in TyphoonSim and will not affect TyphoonSim simulation at all.
  • TLM Embedded coupling type will be replaced with a corresponding inductor in TyphoonSim.

If Embedded coupling is set to Ideal Transformer, Ideal Transformer based coupling will be placed between two windings of transformer.

Visual representations of circuit division among standard processing cores are given in:

  • Figure 3 when Embedded coupling 1-3 is set to Ideal Transformer;
  • Figure 4 when all three embedded couplings are set to Ideal Transformer.
Figure 3. Representation of circuit division between cores where Embedded coupling 1-3 is set to 'Ideal Transformer'
Figure 4. Representation of circuit division among cores where all three couplings are set to 'Ideal Transformer'

If Embedded coupling is set to TLM, a secondary winding inductor will be replaced with a TLM coupling component. Inductance will be divided between coupling and embedded inductors (inductors will be hidden in the TLM). The TLM to embedded inductors ratio can be determined by the compiler, but it can also be specified explicitly. If the Automatic option is selected, the ratio will be determined by the discretization method. If the Manual option is selected, the ratio can be explicitly set to meet user requirements. For more information on TLM couplings please refer to Core couplings - TLM.

Visual representations of circuit division among standard processing cores are given in:

  • Figure 5 when Embedded coupling 1-3 is set to TLM;
  • Figure 6 when all three embedded couplings are set to TLM.
Figure 5. Representation of circuit division between cores where Embedded coupling 1-3 is set to 'TLM'
Figure 6. Representation of circuit division among cores where all three Embedded couplings are set to 'TLM'

Ports

  • prm_1 (electrical)
    • Primary winding port 1.
  • prm_2 (electrical)
    • Primary winding port 2.
  • sec_1 (electrical)
    • Secondary winding port 1.
  • sec_2 (electrical)
    • Secondary winding port 2.
  • sec_3 (electrical)
    • Secondary winding port 3.
  • sec_4 (electrical)
    • Secondary winding port 4.
  • sec_5 (electrical)
    • Secondary winding port 5.
  • sec_6 (electrical)
    • Secondary winding port 6.

General (Tab)

  • Input parameters
    • Specifies parameters format (SI or pu).
  • Sn
    • Nominal Power of the transformer [VA].
  • fn
    • Nominal frequency [Hz].
  • V1
    • Rated voltage of winding 1 (primary) [Vrms].
  • V2
    • Rated voltage of winding 2 [Vrms].
  • V3
    • Rated voltage of winding 3 [Vrms].
  • V4
    • Rated voltage of winding 4 [Vrms].
  • R1
    • Available if Input parameters is set to SI.
    • Resistance of winding 1 (primary) [Ω].
  • r1
    • Available if Input parameters is set to pu.
    • Resistance of winding 1 (primary) [p.u.].
  • L1
    • Available if Input parameters is set to SI.
    • Leakage inductance of winding 1 (primary) [H].
  • l1
    • Available if Input parameters is set to pu.
    • Leakage inductance of winding 1 (primary) [pu].
  • I1
    • Available if Input parameters is set to SI.
    • Initial current of winding 1 (primary) [A].
  • i1
    • Available if Input parameters is set to pu.
    • Initial current of winding 1 (primary) [pu].
  • R2
    • Available if Input parameters is set to SI.
    • Resistance of winding 2 [Ω].
  • r2
    • Available if Input parameters is set to pu.
    • Resistance of winding 2 [pu].
  • L2
    • Available if Input parameters is set to SI.
    • Leakage inductance of winding 2 [H].
  • l2
    • Available if Input parameters is set to pu.
    • Leakage inductance of winding 2 [pu].
  • I2
    • Available if Input parameters is set to SI.
    • Initial current of winding 2 [A].
  • i2
    • Available if Input parameters is set to pu.
    • Initial current of winding 2 [pu].
  • R3
    • Available if Input parameters is set to SI.
    • Resistance of winding 3 [Ω].
  • r3
    • Available if Input parameters is set to pu.
    • Resistance of winding 3 [pu].
  • L3
    • Available if Input parameters is set to SI.
    • Leakage inductance of winding 3 [H].
  • l3
    • Available if Input parameters is set to pu.
    • Leakage inductance of winding 3 [pu].
  • I3
    • Available if Input parameters is set to SI.
    • Initial current of winding 3 [A].
  • i3
    • Available if Input parameters is set to pu.
    • Initial current of winding 3 [pu].
  • R4
    • Available if Input parameters is set to SI.
    • Resistance of winding 4 [Ω].
  • r4
    • Available if Input parameters is set to pu.
    • Resistance of winding 4 [pu].
  • L4
    • Available if Input parameters is set to SI.
    • Leakage inductance of winding 4 [H].
  • l4
    • Available if Input parameters is set to pu.
    • Leakage inductance of winding 4 [pu].
  • I4
    • Available if Input parameters is set to SI.
    • Initial current of winding 4 [A].
  • i4
    • Available if Input parameters is set to pu.
    • Initial current of winding 4 [pu].
  • Core model
    • Selects transformer core model implementation.
    • Several levels of model fidelity are available - Linear, Non-Linear, or Rm/Lm neglected.
  • Rm
    • Available if Input parameters is set to SI and Core model is set to Linear or Non-Linear.
    • Resistance representing core losses [Ω].
  • rm
    • Available if Input parameters is set to pu and Core model is set to Linear or Non-Linear.
    • Resistance representing core losses [pu].
  • Lm
    • Available if Input parameters is set to SI and Core model is set to Linear.
    • Magnetization inductance [H].
  • lm
    • Available if Input parameters is set to pu and Core model is set to Linear.
    • Magnetization inductance [pu].
  • Flux values
    • Available if Core model is set to Non-Linear.
    • List of magnetic flux values [Wb] or [pu].
  • Current values
    • Available if Core model is set to Non-Linear.
    • List of current values [A] or [pu].

Coupling (Tab)

  • Ideal Transformer Embedded coupling type is ignored in TyphoonSim and will not affect TyphoonSim simulation at all.
  • TLM Embedded coupling type will be replaced with a corresponding inductor in TyphoonSim.
  • Embedded coupling 1-2
    • Embedded coupling option - inserts a coupling component between winding 1 and 2 - can be set to Ideal Transformer, TLM or None.
  • TLM 1-2/Embedded components ratio
    • Available if Embedded coupling 1-2 is set to TLM.
    • Defines how coupling to embedded inductors ratio will be calculated (automatic or manual). Related to coupling between winding 1 and 2.
  • Embedded coupling 1-3
    • Embedded coupling option - inserts a coupling component between winding 1 and 3 - can be set to Ideal Transformer, TLM or None.
  • TLM 1-3/Embedded components ratio
    • Available if Embedded coupling 1-3 is set to TLM.
    • Defines how coupling to embedded inductors ratio will be calculated (automatic or manual). Related to coupling between winding 1 and 3.
  • Embedded coupling 1-4
    • Embedded coupling option - inserts a coupling component between winding 1 and 4 - can be set to Ideal Transformer, TLM or None.
  • TLM 1-4/Embedded components ratio
    • Available if Embedded coupling 1-4 is set to TLM.
    • Defines how coupling to embedded inductors ratio will be calculated (automatic or manual). Related to coupling between winding 1 and 4.
  • Type of coupling element
    • Available if corresponding Embedded coupling is set to Ideal Transformer or TLM.
    • Defines whether the inserted coupling element is a core or a device coupling.
    • Device coupling is available if corresponding Embedded coupling is set to Ideal Transformer for all HIL devices except HIL402.
  • Ratio
    • Available if corresponding Embedded coupling is set to TLM and TLM/Embedded components ratio is set to Manual.
    • Specifies coupling to embedded inductors ratio.