Balanced Voltage Sag Correction Using Dynamic Voltage Restorer Based Fuzzy Polar Controller

ABSTRACT:

Numerous controllers based fluffy rationale have been connected on electric power framework. As often as possible, time reaction of the fluffy controllers is gradually, on the grounds that the quantity of participation capacities are too much. Many research are proposed to limit the quantity of enrollment work, for example, fluffy polar controller technique. By utilizing this strategy, number of enrollment capacity can be limited, so the time reaction of the controller turn out to be quicker. This paper displays the Dynamic Voltage Restorer (DVR) based Fuzzy Polar Controller Method to remunerate adjusted voltage list. Reenactment results demonstrate this proposed technique can repay adjusted voltage hang superior to PI controller.

 

 BLOCK DIAGRAM:


 Fig. 1. Block diagram of DVR

EXPECTED SIMULATION RESULTS:

 Fig. 2. 50% of voltage sags at bus A

Fig. 3. 50% sags correction using DVR based PI Controller

Fig. 4. 50% sags correction using DVR based fuzzy polar controller

 CONCLUSION:

DVR based PI Controller can keep up half voltage hangs at 110 % and 30% voltage droops at 98%. DVR based Fuzzy Polar Controller can keep up half voltage lists at 100 % and 30% voltage lists at 97%. As per the mistake normal everything being equal, are demonstrated that the execution of DVR based Fuzzy Polar Controller superior to DVR based PI Controller. Further investigation for unbalance remedy is being attempted to demonstrate the viability of the proposed controller.