Saturday, March 29, 2008

Unified Power Quality Controller

Unified Power Quality Controller
Unified Power Quality Controller is the final answer for your power quality problems. It will provides voltage stabilization and harmonic correction for voltage wave form and corrects power factor to unity including non linear current waveforms. Basicaly it uses two PWM four quadrant inverters for power quality corrections. One delta inverter of small capacity in series for voltage regulation and voltage waveform harmonic correction and one full rated inverter connected in parallel for power factor correction and current harmonic correction for non linear loads. Both inverters are connected to a common DC link voltage.
The proposed topology is tested using pspice and found satisfactory. Hardware implimation is going on. I will publish hardware details soon.

Solar Street Light

Solar Street Light Circuit
This is a circuit of solar street light which will power 11W CFL. The circuit uses series switch charge controller for battery charging. Current fed parrallel resonant push pull inverter is used as inverter for CFL. Relay is used for preheated start up of lamp to increase lamp life. Battery deep discharge protection is provided for protecting battery.