MATLAB/SIMULINK MODEL OF MULTI-MACHINE (3-Machine, 9-Bus) WSCC SYSTEM INCORPORATED WITH HYBRID POWER FLOW CONTROLLER

The stability of an interconnected power system is its ability to return to normal or stable operation after having been subjected to some form of disturbance. Instability means a condition denoting loss of synchronism or falling out of step. Stability considerations have been recognized as an essential part of power system planning for a long time. With interconnected system continually growing in size and extending over vast geographical regions, it is becoming increasingly more difficult to maintain synchronism between various parts of a power system. FACTS devices have shown very promising results when used to improve power system steady-state performance. They have been very promising Candidates for utilization in power system damping enhancement. Hybrid Power Flow Controller (HPFC) is incorporated with MM system in the present work as it can be used to replace or supplement the existing equipments. Usually, it can be installed at locations already having the reactive power compensation equipments like the SVC, STATCOM etc. In this Paper author Studied the power system stability enhancement by implementing the HPFC in MM System power system. The system also has the provision of a comparative studyof the performances of UPFC and HPFC regarding power system stability enhancement of the system. Results obtained are encouraging and indicate that the designed model has very good performance which is comparable to the already existing UPFC.