Modeling of machine coils under fast front excitation using a non-uniform multiconductor transmission line approach

Antiresonance Phenomenon and Peak Voltage Stress Within PWM Inverter Fed Stator Winding

“…In [11][12], only the first five turns are represented as a transmission line Г-cell and the model is terminated using a lumped π-cell. However, in [13],…”

“…Furthermore, enormous efforts [7][8][9][10][11][12][13][14][15][16][17][18] have reported that the PWM voltage with a high slew rate leads to uneven distribution of voltage within the winding. These efforts have employed a HF model of the stator winding to understand the voltage distribution.…”

“…Many papers in literature [7][8][9][10][11][12][13][14][15][16][17][18] have availed the multiconductor transmission line (MCTL) model to predict the voltage distribution, however, they represented the HF behavior of the winding partially. Adjaey et.al.…”

“…In the foregoing literature [7][8][9][10][11][12][13], the core is assumed as a flux barrier which allows pretermitting the eddy current loss. However, at HF, when the skin depth is less than the laminate thickness, the flux produced by the winding penetrates partially within the iron core and induces eddy current.…”

Modeling and Simulation of Rotating Machine Windings Fed by High-Power Frequency Converters for Insulation Design

“…Multi-conductor transmission line model of the coil with a zig-zag connection (three turns are considered for the purpose of illustration)[21].…”