発電機の無効電力出力制約を考慮した電力系統の電圧安定限界

抄録

This paper investigates transfer limit surface as a key to voltage stability of electric power system. Transfer limit surface is defined in nodal loading parameter space as a set of critical points. It is concluded that transfer limit surface of general power system with inequality constraints is considered to be continuous, non-smooth, and convex under some realistic assumptions. It should be noted that the non-smoothness is not so serious. Above properties of transfer limit surface is confirmed numerically through examples of two small-scale power systems with inequality constraint(s). Numerical methods to compute normal vector of transfer limit surface in the context of continuation methods are also shown.