A special kind of optimization problems with linear complementarity constraints was studied.

Generator reactive limiter, load tap changing limiter and static var compensator adjust limiter were modeled by nonlinear mixed complementarity constraints and incorporated into the optimization problem to determinate critical point of voltage stability of power systems.

As we know, optimization problems with complementarity constraints have a wide application in economy, engineering design, game theory, making decision and so on, so in recent years there has been a growing literature on these important optimization problems.

Automatically solving method of interaction constraints based on parameter space of feature

To realize bilateral protocols and dynamic restriction of roles mutex,and to solve the problems arose by permission sharing,a role-based dynamic delegation model was proposed.