Stability Analysis of a Constant Torque Static Slip-Power-Recovery Drive

The stability analysis of a static slip-power-recovery drive is presented A set of nonlinear differential equation describing the dynamics of the system are developed and linearized about an operating point using perturbation technique. Using the characteristic equation obtained from the motional impedance matrix and the Routh-Hurwitz criterion instability regions have been plotted in the torque-firing angle plane. The effects of system inertia, filter parameters, and applied voltage upon the instability regions have been investigated. An experimental verification of the stability region has also been presented.