Power Flow Control and Stability Improvement of EHV and UHV Transmission and Distribution Systems with Closed Loop Control of GCSC

The exponential growth of everlasting power demand, the management of power grid is easy with the increased usage of EHV and UHV Transmission systems. The performance of Power Transmission and distribution can be improved with the usage of FACTS Devices. The GTO Thyristor Turn off Series Capacitor (GCSC) is a powerful device among all FACTS Devices to control power flow and stability improvement. This article realized the fact of effectiveness of the GCSC in improving the power flow and stability of EHV, UHV and distribution systems. The EHV, UHV Transmission systems as well as distribution systems have been simulated with operating voltages of 1500KV, 1200KV, 800KV, 400KV, 220KV, 132KV and 11KV. All these systems have been simulated without and with GCSC and results have been presented in this article. The simulation results prove the power transfer and stability have been improved substantially with the open loop as well as closed loop controls of GCSC.