Realization of a Single Phase DSP Based Neuro-Fuzzy Controlled Uninterruptible Power Supply

In this study, a neuro-fuzzy (NF) control algorithm is proposed for the application in control of a single phase, power factor corrected (PFC), uninterruptible power supply (UPS). To make a comparison, the designed UPS is also controlled using traditional proportional and integral (PI) controller. The average current control technique is used in the PFC stage of the UPS and the current mode control technique is used in the inverter stage of the UPS. Performances of these two controllers are compared through the computer simulation and practical studies. The results of the simulation and experimental studies based on TMS320F2812 digital signal processor show that the NF controlled UPS has better performance than the PI controlled UPS in input power factor correction and total harmonic distortion (THD) of output voltage under nonlinear loading conditions.