Transient Performance of a Group of Induction Motors

Transient Performance of a Group of Induction Motors With Terminal Capacitors Following Supply Disconnection

“…The stator and rotor currents of the machines of the group at the instant of disconnection will readjust themselves to maintain constant flux linkages along the d and q axes of the separate machines [5]. The electrical differential equations of the group referred to stationary d-q axes may be derived, with equations (6) and (7) In addition to equation (8), which is nonlinear and has to be solved numerically, the mechanical differential equation of each machine of the group has to be solved at each step of the numerical solution to take the variation of the speed of the machines into account.…”

“…However, these investigations were concerned with the behavior of a single three-phase machine with terminal capacitors [3,6]. Also investigations on the transient behavior of a group of induction machines following supply connection, disconnection and reconnection had been conducted [2,4,5,7] but without using terminal capacitors for power factor correction.…”