Analysis of stability control of a power system with a distributed constant circuit model

To analyze an electric power system with a lumped constant circuit model, it is necessary to simulate, in detail, the system conditions such as the states of connections of the generators. The analysis thus requires enormous time and labor. The authors noticed that the propagation characteristics of power disturbance in load cut off tests on generators of a power system are similar to the propagation characteristics of power disturbance in distributed constant circuits, and have been examining methods for simulating a power system with a distributed constant circuit. We applied the active sink method to the distributed constant circuit model of a power system to examine stabilization of power disturbance by controlling the power flow of a DC system parallel-connected to an AC system.