In this paper, a Photovoltaic based Dynamic Voltage Restorer (PV-DVR) is proposed to deal with profound voltage droops, swells and blackouts on a low voltage single stage private dispersion framework. It can recoup hangs up to 10%, swells up to 190% of its ostensible esteem. Else, it will work as a Uninterruptable Power Supply (UPS) when the utility network neglects to supply. It is likewise intended to diminish the use of utility power, which is produced from atomic and warm power stations. An arrangement infusion transformer is associated in arrangement with the heap while reestablishing voltage droop and swell and it is reconfigured into parallel association utilizing semiconductor switches when it is working in UPS and power saver mode. The utilization of high advance up dc-dc converter with high-voltage gain lessens the size and required power rating of the arrangement infusion transformer. It likewise enhances the dependability of the framework. The Fuzzy Logic (FL) controller with two data sources keeps up the heap voltage by distinguishing the voltage varieties through d-q change strategy. Reproduction results have demonstrated the capacity of the proposed DVR in moderating the voltage list, swell and blackout in a low voltage single stage private appropriation framework.
Fig. 1. Structural block diagram of the proposed system.
EXPECTED SIMULATION RESULTS:
- (a) Supply Voltage
- (b) Injected Voltage
- (c) Load Voltage
- (d) Load Current
(e) Load voltage THD
Fig. 2. Supply voltage, Injected voltage, Load voltage, Load Current and
Fig. 3. Load Voltage with PI controller
- (a) PV array output voltage without low power boost converter
(b) PV array output voltage with low power boost converter
Fig. 4. PV array output voltage without and with boost converter
Fig. 5. Output voltage of the high step up DC-DC converter
This paper proposed another PV based DVR to lessen the vitality utilization from the utility network. The plan of a Dynamic Voltage Restorer (DVR) which consolidates a PV exhibit module with low and high power support converters as a DC voltage source to relieve voltage hangs, swells and blackouts in low voltage single stage conveyance frameworks utilizing FL controller has been introduced. The displaying and reenactment of the proposed PV based DVR utilizing MATLAB simulink has been exhibited. The FL controller uses the blunder motion from the comparator to trigger the switches of an inverter utilizing a sinusoidal PWM conspire. The proposed DVR uses the vitality drawn from the PV cluster and the utility source to charge the battries amid typical task. The put away energies in battery are changed over to a customizable single stage air conditioning voltage for alleviation of voltage list, swell and blackout. The recreation result demonstrates that the PV based DVR with FL controller gives better unique execution in alleviating the voltage varieties. The proposed DVR is worked in:
Reserve Mode: when the PV exhibit voltage is zero and the inverter isn’t dynamic in the circuit to hold the voltage to its ostensible esteem.
Dynamic Mode: when the DVR faculties the list, swell and blackout. DVR responds quick to infuse the required single stage pay voltages.
Sidestep Mode: when DVR is separated and skirted if there should arise an occurrence of support and fix.
Power Saver mode: when the PV cluster with low advance up dc-dc converter yield control is sufficient to deal with the heap.
Further work will incorporate a correlation with research facility investigates a low voltage DVR so as to think about recreation and trial results. The various elements of DVR require further examination.