Harmonics Analysis & THD with MATLAB

Name: Harmonics Analysis & THD with MATLAB
Rating: 3.9 (30 reviews)

Learn Harmonics Analysis and its effect for All Power Electronics Converters with MATLAB

Created byDr. Jignesh Makwana

Last updated 6/2023

English

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What you'll learn

What is Harmonics & why it is important to know about it?
What is Total Harmonics Distortion (THD)?
What is role of Fourier Analysis?
How to calculate Fourier coefficients & THD?
How to plot the harmonics spectrum of different waveform?
How to use the MATLAB's tool to analyse the waveform for power quality
How to obtain THD & harmonics spectrum
Analysis of Harmonics & issues associated with Inverter: DC to AC Converter
Analysis of Harmonics & issues associated with Rectifier: AC to DC Converter
Analysis of Harmonics & issues associated with Regulator: AC to AC Converter

Course content

5 sections • 18 lectures • 4h 8m total length

Course Introduction6:54
Explore harmonics analysis and total harmonic distortion using MATLAB, learn to obtain harmonic spectra for various waveforms, and simulate with MATLAB toolboxes to assess power quality.

Quest to produce output waveform closed to sine-wave14:18
Fourier analysis & THD16:58
Apply Fourier analysis to represent signals as sums of sine and cosine waves and compute total harmonic distortion, identifying fundamental and harmonic components.
Analysis of Square Wave13:49
Analysis of Quasi Square Wave18:10
Analyze a quasi square wave and its harmonic spectrum in MATLAB, and show how selecting alpha angles eliminates harmonics to reduce total harmonic distortion compared to a square wave.
Analysis of Stepped Wave15:36
Analysis of Notched Waveform18:14
Explore how to analyze a notched waveform and reduce total harmonic distortion using MATLAB, by selecting alpha angles to eliminate specific harmonics and shape the waveform toward the fundamental.
Harmonics Analysis & THD

Fourier Coefficient with MATLAB14:00
Explore how to compute Fourier coefficients and harmonics in MATLAB, using the command window, for loops, and calculations to extract fundamental and higher order components.
Fourier Series with MATLAB24:37
THD with MATLAB9:27
Calculate total harmonic distortion in a MATLAB environment by using waveform data and the fundamental frequency, and visualize the harmonic spectrum from a single-phase inverter simulation.
FFT with MATLAB21:28
Compute the harmonic spectrum of any waveform using MATLAB's FFT toolbox, identify the fundamental and harmonics, and interpret their magnitude and phase for engineering, science, and music applications.
THD in inductive current waveform11:12

Harmonics due to Inverter (DC/AC), Induction Motor Cogging & Crawling21:13
Understand how harmonics in Inverter output creates trouble to the Induction motor running on drive VFD. Understand the role of harmonics in cogging and crawling effect of Induction Motor.
Harmonics due to Rectifier (AC/DC)24:30
Summary: Harmonics due to Rectifier1:25
Harmonics arise from rectification, distorting the supply current and affecting transformers and conductors. Rectified DC voltage, capacitor filters, and power factor correction reduce losses and control speed of DC motors.
Harmonics due to Regulator (AC/AC)12:38
Explore how a regulator controls ac voltage via phase-angle switching and zero padding, altering current waveforms and harmonic distortion (thd) under inductive load, with harmonic spectrum analysis.
Summary: Harmonics due to Regulator2:29
This lecture analyzes harmonics caused by regulators and ac regulators, showing how voltage control distorts current and degrades induction motor performance, and discusses chopper solutions to reduce harmonic content.

Requirements

Basic knowledge of integration is required to understand Fourier analysis.
Basic knowledge of MATLAB simulation is required to use THD function and FFT tool of MATLAB covered in last section.

Description

Hello Everyone!

Wishing you a have happy and healthy life. Stay safe, stay blessed.

As I experienced that many students found difficulties in understanding harmonics analysis and total harmonics distortion. This is due to fact that most engineering students are go through these important topic as a only part of their other main subject like inverter or power quality analysis. That's why I decided to built a course on particular topic "Harmonics Analysis & THD". You may like to check the detail about this course.

Introduction:

This course explains harmonics, requirement of fourier analysis & total harmonics distortion in detail. Main aim of this course is to help student for clearing all doubt about harmonics & its calculation methods.

First section covers method to obtain THD and harmonics spectrum of different waveform. It explains important of harmonics analysis and role of Fourier series in obtaining harmonics spectrum.

Second includes MATLAB programming & simulation tools to obtain THD as well as harmonics spectrum of different waveform. It explains about using FFT toolbox and THD function of MATLAB

Third section analyze harmonics profile of all kinds of power electronics converters and explains how it produces harmonics at different stages and effect how it affects load side as well as supply side.

Who this course is for:

This course is suitable for the diploma or degree students of electrical engineering, power electronics engineering, electronics engineering & power engineering.
This course is suitable for the person working with power electronics inverters or power quality related projects or industries.
This course is recommended for those who are going to use power quality analyser in their project.
This course is must for those who are interested in inverter or power quality related projects & dissertation works.
This course is useful for Mtech, ME, PG, Phd students of Electrical & Power Electronics Engineering

Harmonics Analysis & THD with MATLAB

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 7min

Fourier Analysis & THD in Inverter6 lectures • 1hr 37min

MATLAB for Harmonics Analysis & THD5 lectures • 1hr 21min

Harmonics due to Power Electronics Converters5 lectures • 1hr 2min

Summary1 lecture • 2min

Requirements

Description

Who this course is for: