A Novel Dynamic Voltage Restorer with Outage Handling Capability Using Fuzzy Logic Controller

ABSTRACT:

This paper exhibits a novel dynamic voltage restorer (DVR) equipped for taking care of profound hangs including blackout on a low voltage circulation framework. The DVR recoups droops up to 10% of ostensible voltage; else, it will work as a uninterruptible power supply (UPS). A transformer is associated in arrangement with the heap while reestablishing lists, and is reconfigured into parallel association utilizing switches when dealing with blackouts. The controller utilizes a Fuzzy Logic with 3 contributions to keep up the heap voltage through d-q change. Primer outcomes from research facility tests are additionally displayed in this paper.

 

BLOCK DIAGRAM:

Fig. 1. Block diagram of the proposed DVR

 

EXPECTED SIMULATION RESULTS:

(a) Grid Voltage

(b) Load Voltage

(c) Inverter Voltage

Figure 2. The grid, load and inverter voltages under 3-phase fault

Figure 3. Grid and load voltages during 1-phase to ground fault

 

CONCLUSION:

A novel dynamic voltage restorer utilizing Fuzzy Logic controller was shown to cure lists and blackout voltages. Stage bounces and lopsided conditions because of single stage to-ground blame can likewise be remunerated by the DVR. In case of blackout, where the voltage dips under 10%, the DVR reestablish the voltage into the typical. In this way, the heap voltage is unaffected by the unsettling influences including lists and blackouts.

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