अमूर्त

Observability & Controllability of a power system by optimizing the performance of PMUs & FACTS controller

Kiran R, B.R.Lakshmikantha, R V Parimala

The principle objective is to investigate the best method for determining an optimal location for PMUs and FACTS devices, so that the entire power system can be completely observable and controllable. This paper presents a simple and effective method for optimal placement of PMUs and FACTS devices. A voltage stability based weak bus screening method has been utilized to select critical buses for determining power system stability. An algorithm is used for the PMU placement to determine optimal PMU locations for the system observability. This paper deals with simulation of IEEE 14-bus power system using Statcom & UPFC to improve the power quality. The UPFC is also capable of improving transient stability in a power system. The real and reactive powers can be easily controlled in a power system using a UPFC system. The circuit model for UPFC is developed using rectifier and inverter circuits. The Matlab simulation results are presented to validate the model. The proposed method is tested on the IEEE 14-bus system & 8-bus system for observability & controllability analysis