摘要：Maintenance of power balance at each time moment in every node and in the electric power system as a whole is a mandatory condition for supplying the electric power of required quality (frequency, voltage levels). Property of the system to be considered as its ability to control power balance is referred to as flexibility. Technologies for operating conditions control or systems services are an efficient means of regulating the flexibility of HV transmission networks in the cycle of on-line and anti-emergency control. Present-day FACTS of the second generation based on power electronics whose control systems ensure high efficiency of control and stabilization are the most perspective means of flexibility regulating and control.The paper considers potentials of using those devices for regulating the flexibility of 500/200 kV network that is a section of a real EPS. Calculations were performed in the simulation experiment and were based on real telemetry measurements using the State Estimation Software.The results of the studies have showed that substitution of the first-generation FACTS devices by the controlled second-generation FACTS devices and installation of new present-day FACTS allows notable enhancement of HV electric networks controllability and ensures the required level of networks flexibility.
