This document summarizes a student project analyzing and simulating multilevel inverter topologies using MATLAB/Simulink. The objectives are to conduct a literature review on multilevel inverter configurations, develop and simulate different two-level and multilevel inverter topologies using PWM techniques, and determine the characteristics and harmonics levels. The scope includes applications like motor drives, DC transmission, FACTS, and renewable energy integration. Literature discusses how multilevel inverters synthesize voltages from multiple DC levels and are suitable for industrial high power applications. Diode-clamped, flying capacitor, and cascaded/H-bridge topologies will be studied. The methodology involves designing simulation models and analyzing performance results.

1. ANALYSIS AND SIMULATION OF MULTILEVEL
INVERTER TOPOLOGIES USING MATLAB/SIMULINK
Group-3
1.Abhinav Shashank Srivastava
(Group Leader)
2.Abhinandan Tripathi
3.Utsav Gupta
4.Satya Prakash Gautam
Project Synopsis Presentation
On
Under guidance-
Dr. Sanjiba Kumar Bisoyi
DEPARTMENT OF ELECTRICAL ELCTRICAL ENGINEERING

2. CONTENTS
 SPECIFIC OBJECTIVES BEING ADDRESSED BY THE PROJECT
 SCOPE OF THE PROJECT
 LITERATURE REVIEW
 BLOCK DIAGRAM OF THE PROJECT
 METHODOLOGY
 FLOW CHART/ WORK FLOW
 REFERENCES

3. OBJECTIVES OF THE PROJECT
 A literature survey on different multilevel inverter configuration .
 To gather information about multilevel inverter topologies and to
investigate the properties of these topologies.
 To Develop and Simulate different Two level and MLI topologies (single
phase and Three phase configuration) using PWM Techniques.
 To implement and determine the characteristics and harmonics level of
different configuration.
 List out Advantages and disadvantages of the multilevel inverters with
proposed configuration.

4. SCOPE OF THE PROJECT
 High-voltage and Medium-voltage motor drives.
 High voltage dc transmission
 Flexible AC transmission system (FACTS)
 Traction
 Active filtering
 Utility interface for renewable energy systems

5. LITERATURE REVIEW
 The multi-level inverter is to synthesize a near sinusoidal voltage
from several levels of dc voltages.
 The Multi level inverter is like an inverter and it is used for industrial
applications as alternative in high power and medium voltage situations.
 The need of multilevel converter is to give a high output power from
medium voltage source
 Multilevel inverters have become more popular over the years in electric
high power applications with less disturbances in voltage and the
possibility to function at lower switching frequencies than ordinary two
level inverter

6. ADVANTAGES OF MULTILEVEL INVERTERS
 Reduced harmonic distortion: Multilevel converters not only can
generate the output voltages with very low distortion, but also can reduce
the dv/dt stresses; therefore electromagnetic compatibility (EMC) problems
can be reduced.
 Common-mode (CM) voltage: Multilevel converters produce smaller CM
voltage; therefore, the stress in the bearings of a motor connected to a
multilevel motor drive can be reduced.
 Input current: Multilevel converters can draw input current with low
distortion.
 Switching frequency: Multilevel converters can operate at both
fundamental switching frequency and high switching frequency PWM. It
should be noted that lower switching frequency usually means lower
switching loss and higher efficiency

7. TYPES OF MULTILEVEL INVERTER
 Diode clamped or Neutral-Point Clamped type
 Flying capacitors type
 Cascaded or H-bridge type

8. BLOCK DIAGRAM OF THE PROJECT

9. FLOW CHART/ WORK FLOW
Task1 • Selection of project topic & collect resources.
Task2
• Thorough study about the research paper &references.
Task3
• Design &development of simulation model & analysis of their
operations.
Task4
• Summaries all operation performance results & make compression
between different techniques.
Task5 • Give final presentation and prepare the report.
Task6 • Report Writing and submission.

10. REFERENCES
[1] Shubhada Doifode1, Subroto Dutt2, Rahul Shende3,” A Study of
Multilevel Inverter Topologies” International Journal of Advanced Research in
Electrical, Electronics and Instrumentation Engineering Vol. 4, Issue 6, June
2015.
[2]Rajesh Kr Ahuja, Lalit Aggrawal, Pankaj Kumar, “Simulation of single
phase multilevel inverters with simple control strategy using MATLAB”,
International Journal of Advanced Research in Electrical, Electronics and
Instrumentation Engineering, volume 2, Issue 10,October 2013
[3] JOSEPHINE R L,” PWM CONTROL FOR HYBRID CLAMPED
MULTILEVEL INVERTERS” Journal of Electrical Engineering.
[4]International Journal of Advanced Research in Electrical , Electronics and
Instrumentation Engineering
(An ISO 3297: 2007 Certified Organization)
Vol. 2, Issue 10, October 2013

11. THANK YOU