Stability Improvement of Grid Connected MLI using the Controllers (PID & ANFIS) by Limiting Voltage Level

This work comprises of comparative exploration on these two (PID, ANFIS) types of controllers to improve stability of grid connected MLI by limiting the voltage level. Materials & Methods: PID and ANFIS controllers are implemented in this work. The sample size was calculated using Gpower and determined to be 14. Results: Based on the results obtained, ANFIS controller has a peak output voltage of 58.12 mV, PID controller has a peak output voltage 59.40 mV in comparison to the without controller unit of voltage 57.12 mV. The significance value obtained is 0.005 (p<0.05). Conclusion: ANFIS controller provides significant voltage stability compared to PID controller for the nominated data by Novel optimization technique.