The effect of initial conditions on subharmonic currents in a nonlinear series circuit

Methods for studying ferroresonance in pi and series power circuits

“…Several researchers have used analytical techniques and developed various expressions to represent the nonlinear transformer magnetization charac teristic and solved the resulting differential equation by classical methods (11)(12)(13)(14)(15). Others have used simulation methods and employed physical models (16,17). In addition, As early as 19 31,Boyajian (21) derived the differen tial equations for the series circuit with the magnetiza tion characteristic of the transformer shown in Figure 3a.…”