• G.ANJANEYULU,
• CH. RAMAIAH

This paper proposes a new real and reactive power coordination controller for a unified power flow controller (UPFC). The basic control for the UPFC is such that the series converter of the UPFC controls the transmission line real/reactive power flow and the shunt converter of the UPFC controls the UPFC bus voltage/shunt reactive power and the DC link capacitor voltage. In steady state, the real power demand of the series converter is supplied by the shunt converter of the UPFC. A new reactive power coordination controller has been designed to limit excessive voltage excursions during reactive power transfers. The shunt converter of the UPFC +controls the UPFC bus voltage/shunt reactive power and the dc link capacitor voltage. Recent advances in high voltage IGCT technology allow for higher switching frequencies with lower losses. This allows for practical implementation of PWM control. The switching frequency for the converters has been chosen to be nine times the fundamental. Here we use matlab/simulink for the simulation purpose and outputs are verified in the scope.

UPFC control, IPFC controller, Real power, Reactive power, Series converter, and Shunt converter.

"SIMULATION OF UPFC AND IPFC USING MATLAB/ SIMULINK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.532-538, July-2018, Available :http://www.jetir.org/papers/JETIR1807084.pdf

"SIMULATION OF UPFC AND IPFC USING MATLAB/ SIMULINK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp532-538, July-2018, Available at : http://www.jetir.org/papers/JETIR1807084.pdf