Theory and Performance of Parametric Transformers

Review of Flux Interaction of Differently Aligned Magnetic Fields in Inductors and Transformers

“…A detailed analysis of the paraformer is presented in [92]. References [93] - [95] present the basic functional principle of parametric transformers and an analysis. Different construction forms are investigated and discussed in [96].…”

“…In [107], the device is used to connect two live busbars. Because of the device structure, it is possible to shift power from one bar to another one by adjusting a phase shift angle between the two busbar volt-FIGURE 5: A parametric transformer [93] ages. The behavior of the paraformer, when it is controlled by thyristors, is shown in [108].…”

Parametric transformer using PM‐inductors with saturation‐gap

“…There is not an algebraic solution known for (8) or (9). An approximate solution can be defined for 0 < m < 1, and assuming no load or losses.…”

“…• Minimum flux-linkage between primary and secondary windings. Most of the different PTs topologies found in the literature, date back to the 1970s [4][5][6][7][8][9][10][11], and rely on the non-linear properties of ferromagnetic saturation, in order to achieve inductance variations. Due to the core non-linear permeability, the inductance characteristic of common inductors and transformers is typically expressed as a function of current:…”

“…A number of PT topologies were developed during the 1970s and 1980s and published in the scientific literature [4][5][6][7][8][9][10][11], demonstrating the previously mentioned advantages. On the other hand, these PT topologies presented important limitations.…”