AdiKhanOfficial
Adil Khan 1 year ago
AdiKhanOfficial #FYP Ideas

Thirty KVA three phase automatic voltage regulator

Project Summary This project is related to the real industerial fluctuation problem faced in manny industries.In pakistan high voltage AVRS are to costely and are imported,this causes in the addition of money in the form of taxes.So this project will be designed according to the requirement a

Project Title

Thirty KVA three phase automatic voltage regulator

Project Area of Specialization

Electrical/Electronic Engineering

Project Summary

Project Summary

This project is related to the real industerial fluctuation problem faced in manny industries.In pakistan high voltage AVRS are to costely and are imported,this causes in the addition of money in the form of taxes.So this project will be designed according to the requirement and will be  low cast.A 15 kva buck boost transformer is designed at its low cast of about 6000 RS rather than 18000 RS.

This project will help in sensing fluctuation and controll the voltages level.The automatic voltage regulator is used to regulate the voltage. It senses the fluctuation in voltage and increases or decreases the voltage automatically. The fluctuation in the voltage mainly occurs due to the variation in load on the supply system. The variation in voltage damages the equipment of the power system. The variation in the voltage can be controlled by installing the voltage control equipment at several places likes near the transformers, generator, feeders, etc. The voltage regulator is provided in more than one point in the power system for controlling the voltage variations. High quality manufacturing machinery required high power supply with minimal fluctuation.Wapda supply has many fluctuation due to flow faults. In DC supply system the voltage can be controlled by using over compound generators in case of feeders of equal length, but in the case of feeders of different lengths the voltage at the end of each feeder is kept constant using feeder booster. In AC system the voltage can be controlled by using the various methods likes booster transformers, induction regulators; shunt condensers, etc., Continuous stable supply of AC power is the life line of any sophisticated electronic system. Under-voltage generally reduces efficiency, whereas over-voltage shortens the life. Also a very low voltage can force the system to shut down. The problem of the maintenance of constant voltage covers an extremely large field, from the control of the bus bar voltage of a power station to the supply of constant voltage to small electronic instruments. According to the nature of electricity. Voltage fluctuation is common in any electrical supply system. Continuous variation of loads and extension of power lines are the main factors which contribute to the above problem. Automatic voltage regulator using servo systems are quite common. Both single-phase and three-phase types are available. Equal ratings of single-phase automatic voltage stabilizers are mounted on each phase, it acts as a three-phase system for unbalanced load. Rather its cost is high but using a single automatic voltage regulator with 3 phase is useful. A stabilizer is also the automatic voltage regulator. The automatic voltage regulator is relay type. The automatic voltage regulator is a servo type and controlled with electronic circuit.

Project Objectives

30 KVA 3-phase automatic voltage regulator is to be designed and implemented to meet the following objectives.

  • To solve the real industrial voltage fluuctuation problem.
  • To sense the voltage level and frequencies provided by Wapda.
  • Comparing these voltage level to reference data through micro-controller.
  • To improve the quality of electric supply as per requirement of machinery.

Project Implementation Method

Implementation

The implementation of avr is done according to requirement of problem.This will hapeens in following steps.

  • A buck boost transformer will be designed and interfaced with micro controller.
  • A PID controller will be designed for controlling system.
  • Buck boost transformer will be intrfaced with servo-motor to buck or boost the voltages.
  • A voltage sensor will installed before all this system to sense voltages and frequency.
  • Auto toroidal transformer with servo motor will controll the voltages level.
  • Relays are used in this system. In the AVR system first 3 phase AC supply of 320-440 volts with a frequency of 50 to 60 Hz is provided to it through WAPDA. Then the MCCB switch is used to on and off the AVR and also used as a safety switch which trips the whole system when there is a short circuit or any error. After this 3 connection are made through the output voltages coming through the MCCB. One connection is made for the bypass circuits (manual), second connection is used for circuit to auto adjust the voltages and the third connection goes for the servo motor board. Now for the bypass system the system is operating manually in which the voltage coming from MCCB switch is directly connected to the selector switch which tells the system is operating manually or automatic; then the voltages directly goes to the secondary coil of the transformer And its out is directly connected to the load. In this no voltage gets up or down and goes as it is. Now for the system working on automatic, in this another connection is made between the MCCB switch-out and the servo motor system. Now the servo motor stabilizes the voltages and steps up or steps down the voltages according to PLC board sending signals to it and then the voltages passes through the selector switch before entering the series step up or step down transformers to confirm that the system is running on auto. Then the voltages goes to the relays and it send the voltages to step up or step down transformer to step up or step down the voltage according the requirement set on the servo motor board. Then in the end the required voltages goes to the load attached.

Benefits of the Project

Benefits.

  • low cast designed
  • Make reliable 
  • Fluctuation controll
  • Sensing frequencies
  • Real Industrial fluctuation problem solving

Technical Details of Final Deliverable

Deliverables.

  • Interface voltage sensor with micro-controller.
  • As per requirement design and implementation of buck boost transformer and auto toroidal transformer will be done.
  • Selection switch and servo motor are interfaced with micro-controller.
  • Control system (PID) will be designed and implemented to control the AVR.
  • Performance of AVR will be observed and check its response in terms of time and overshoot.

Final Deliverable of the Project

HW/SW integrated system

Core Industry

Manufacturing

Other Industries

Others

Core Technology

Others

Other Technologies

Artificial Intelligence(AI)

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

Item Name Type No. of Units Per Unit Cost (in Rs) Total (in Rs)
Auto toroidal transformer with servo motor Equipment31900057000
Total in (Rs) 57000
If you need this project, please contact me on contact@adikhanofficial.com
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