MAJOR ASSIGNMENT SUBJECT-CONTOL THEORY

TOPIC –SINGLE PHASE FULL BRIDGE INVERTER

SUBMITTED BY SUBMITTED TOMOHAMMAD SHAHBAZ MR. SOMESH CHATURVEDI

U.I.D.-K10611 ASST. PROFESSOR EE.BRANCH-M.E. DEPT. CPU

CAREER POINT UNIVERSITY

KOTA RAJASTHAN

INTRODUCTION 1-PHASE FULL BRIDGE INVERTER SCHEMETIC MODES OF OPERATION PARTS DESCRIPTION CONCLUSION FUTURE SCOPE

CONTENT

Transformer Voltage regulator (7805) Rectifier Filter Optoisolator (moc3021) Led In4007 diodes 1n4148 signal diode Resistors CAPACITORS Micro controller (ATMEGA 16) POWER SUPPLY COMPARATOR SCR

PARTS

CIRCUIT DESCRIPTION: SUPPLY SECTION The ckt is fed from a 5v dc supply & that voltage taken from

230v ac line by stepping down the voltage from 230v to 12v.This 12v again converted to DC through a bridge rectifier .

A capacitor is connect across the rectifier for two purpose i.e. filtering and boosting. The 5v dc is obtained by voltage

regulator (7805). INVERTER SECTION: This ckt is consists of four IGBTs, which is triggered by two

pulse generator ,(one for +ve half and one for –ve half) CONTROLLING SECTION: In the controlling section the input pulse commutated for

five times to eliminate the lower order harmonics.

A resistive load is connect to see the output.

description

This project Report deals with the Harmonic analysis of Single Phase inverter with Pulse Width Modulation (PWM).

It includes both simple and practical inverter. The Simulink model for both simple and practical

inverter has been simulated in MATLAB. Its various parameters such as R,C and Filter design.

These parameters are varied and the resulting voltage and current graphs has been studied.

Conclusion

The future work includes improving the stability of the system and also to study various instability in SPWM with harmonic analysis in Three phase and ways to eliminate it and to design an actual household SPWM-VSI with a better controller design.

Scope For Future Work