Dynamic simulation of voltage collapse

The problem of voltage collapse is approached by simulation of a power system using a slightly modified transient stability program. A sufficiently complex system with 39 buses and 10 generators is used in simulations. The system is stressed by progressively increasing the system load through a multiplier k. A very small change of k (order of 1%) is used as collapse-inducing disturbance. Total system voltage collapse was observed after the disturbance. The significance of these findings and directions for future research are presented and the applicability of real-time control is discussed