Real Power Flow Control in a Transmission Line by Varying the Turns Ratio of the Injection Transformer
Owing to the highly interconnected nature of the existing power system, congestion management has become a principal key to ensure reliability. A real power flow control based on variation of line reactance is exercised. In this paper, a series injection transformer with variable turns ratio and a capacitance coupled to its secondary brings variable capacitive compensation on the line. The proposed model aids in varying the flow of power by altering the value of available turns ratio. A control algorithm has been developed to switch between the turns ratio and arrive at the set reference value. This could narrow down the level of impediments that could occur in a power system. Also, the proposed system eliminates the use of power electronic switches thereby bringing about a simpler control strategy. The proposed methodology with the control algorithm has been verified through simulation and experimental set up with the support of MATLAB and DAQ LabVIEW respectively.
2019 Innovations in Power and Advanced Computing Technologies (i PACT)