Abstract:
Unified Power Quality Conditioner (UPQC), a relatively new device, can be used simultaneously in voltage
or current control mode in power distribution system. But development of hardware with appropriate control
circuit is a challenging task. In the voltage control mode, the UPQC can force the voltage of a distribution
bus to be balanced sinusoids. At the same time it can also control perform load compensation resulting in the
drawing of balanced sinusoidal currents from the distribution system bus in the current control mode. In this
paper the hardware of the voltage source converter used for UPQC together with details of microcontroller
based control philosophy has been presented.
