Optimum location dependency of FACTS devices on reactive power demand

The injection of reactive power with STATCOM for the control of load bus voltage of a radial system at various locations is examined. The STATCOM which consists of a fixed capacitor bank and a three phase single level voltage source inverter is defined in brief. Also highlighted are new concepts of variable pulse widths and delay angles on the effectiveness of STATCOM for loads such as induction machines and synchronous machines illustrated by simulation. Results suggest, for the load bus voltage to remain within statuary limits, the cost of inverter per reactive power injection is more economical at the load bus.