The new real-time control system of reactive power optimization

This paper uses non-linear programming optimal power flow algorithm with slack constraint to analyze reactive power real-time optimization problems in actual grid. And considering the effect of control action sequence on the optimal control effect, the control strategies of the reactive power real-time optimization control system are improved. The control action sequences in normal and failure circumstance are separately determined based on the control variables´ active power loss control sensibility and voltage control sensibility, effectively avoiding the system oscillation caused by control variables changing at the same time. The application on IEEE-30 bus system verifies effectiveness and practicality of the algorithm and control strategy in this paper.