motion of a shaft

Rotational to linear (sewing machine)

ROTATIONAL Ton rotational explained

linear to rotational mechanism

Working of mechanical gears

Working of an artillary

Working of an IC engine

Working of a mechanical clock (simplified)

How mechanical valves operates

This is simple yet effective visualization of valves.

Types of control systems.AVI

Speed control of DC Motor

Controlled full wave rectifier

PWM Rectifier

Mc Murray thyristor inverter

Three phase to three phase Matrix Converter.AVI

Boost chopper/ step up chopper simulation

Animation of a rotating flower pot using MATLAB

MATLAB & Simulink for Engineers (A K Tyagi).wmv

Error while executing a MATLAB code!!!

In MATLAB there are four types of errors:

1.  Syntax Error
2. Runtime Error
3. Logical Error
4. Numerical Error

Of these Syntax error in encountered the most by begineers and Logical and nuemerical by experencied users.
Try to find out more about these errors.

Few Tips for MATLAB programming

1. The only thing worse than getting an error message is not getting an error message.

2. MATLAB uses the IEEE double-precision floating-point format,

which provides about 15 significant digits of precision (in base 10). Leading

and trailing zeros don’t count as “significant” digits, so MATLAB can represent

large and small numbers with the same precision.

3. A comment is the part of a program that provides additional information about the

program, but does not affect its execution.

4. You must always be 100% sure that the code you are running is the

     code you think you are running.

5. Error messages tell you where the problem was discovered, not where

    it was caused.

6. The worst bugs aren’t in your code; they are in your head.

7. The best way to avoid a bug is to make it impossible.

A Comparative Study of Various Renewable Energy Sources for Onsite Power Generation

Abstract: For more than a decade our private and public life has been advanced by the twin
Electro-Technical achievements: the instantaneous availability of practically unlimited energy and
free flow of information. They have immensely affected the range and scope of our activities.
As such various kinds of onsite power generation sources using fuel Cells, Biogas/Biomass, Wind
Turbines, Photovoltaic Cells etc. have been developed and extensively used to meet the world's
growing energy demand. A comparative study of these resources for onsite generation of power is
performed and presented.
Keywords: Onsite Power Generation, Renewable energy sources, Power Quality.

Verification of Norton's Theorem

Verification of Norton's Thoerom (Short video) by using Simulink. For further insight kindly refer to book  'MATLAB & SIMULINK for Engineers', Oxford University Press. The link is as follows:

http://youtu.be/o5hJGczAl_M

Elementry mathematical computations using MATLAB? Try these five:

1.      Perform the following calculations in MATLAB, taking variables x = 100 and y = 50:

a.       z = x/y;  b. u = x*y; c. v = x+y; d. r  = √x/y; e. t = √x*y; f. q = x sin(5y).

2.      Taking x = 2.10101 and y = 4.3457, estimate the following expressions in MATLAB:

a.       5x/3y;  b. 45x^-8/y^-7;  c. x^-3-y^-4;  d. x^6.7/(4x+y^-3.1)²

     

3.      Using MATLAB calculate:

a.       e^(-1.3)3+ 16 sin(40π); b. π log 21 + ⁵√291; c. sin² 16π/40 + cos² 16π/40;

d. tan (4π/5)²; e. tan^-10.5².

4.      Take variables x = 6 + 7i and y = -5+ 3i. Estimate with the help of MATLAB:

a.       x + y;     b. xy;      c. x/y;          d. x² + y².

5.      Construct a circuit for analyzing the waveform of a sine wave source using a scope in SIMULINK? Take the source frequency as 50 Hz, 60 Hz, 80 Hz & 100 Hz and verify it on the scope by viewing it’s time period?

Error in running matlab in windows 2007

Error in executing MATLAB in win 2007 switch to windows 2000 (compitable mode)

Intro to MATLAB for begineers video

click on the following link
http://www.youtube.com/watch?v=I1vR5xYPcVM&feature=g-upl

Basic Electrical Engineering

Basic Electrical Engineering applications

4.1 Introduction

4.2 Elementary Definitions

4.3 Basic waveforms

4.4 Average, RMS & peak value

4.5 Ohm’s law

4.6 Kirchhoff’s laws

4.7 Independent and dependent DC sources

4.8 Series parallel circuits                                              

4.8.1 Series R-L circuit

4.8.2 Series R-C circuit

4.8.3 Series-parallel circuit  

4.9 Resonance phenomenon

4.9.1 Series resonance

4.9.2 Parallel resonance

4.10 Network theorems

4.10.1 Superposition Theorem

4.10.2 Reciprocity Theorem

4.10.3 Thevenin’s Theorem

4.10.4 Norton’s Theorem

4.10.5 Maximum power transfer Theorem

4.11 Apparent, active and reactive power

4.12 Three phase source and load simulation

4.13 Transformers: Single & Three phase

4.14 Summary

Key Terms

Exercises

Model of current controlled voltage source

Three phase to single phase Matrix Converter

A model of three phase to single phase matrix converter is shown in Fig. 11.13. The three phase input waves are modeled in a similar manner. The input frequency is taken as 50 Hz and the output frequency as 100 Hz. The three switches taken are ideal switches. Modulating signals for this converter are obtained by Venturini method as obtained previous case. Switching pulses from these modulating signals are obtained by applying PWM modulation.

More info: Matlab & simulink for Engineers

180 DEGREE THREE PHASE VOLTAGE SOURCE INVERTER

Model of a three phase 180 degree VSI and its ouput. More design and project ideas Follow Matlab & simulink for Engineers

Matlab & Simulink for Engineers By Agam Kumar Tyagi

MATLAB & SIMULINK FOR ENGINEERS one of the best selling international book. Based on the latest version of MATLAB (2010a), the book begins with an introduction to MATLAB programming describing the MATLAB toolbar and SIMULINK toolboxes. Further the various MATLAB operators, functions, and graphics are discussed in detail. Applications of SIMULINK and MATLAB in electrical engineering, electrical machines & power system projects, simulation of rectifiers, inverters, choppers, and cycloconverters is presented in detail. Applications in computer science, communication and mechanical engineering is also discussed. Finally a chapter on recent developments in this area covers topics such as the matrix converter, modulation techniques, and PWM rectifiers.

The book provides numerous MATLAB programs tested and run for various projects for different disciplines in engineering. The programs, complete with their outputs, through various screen shots of the MATLAB windows help readers familiarise themselves with the software

links:
ukcatalogue.oup.com/product/9780198072447.do

Review on Maths works.com

http://www.mathworks.in/support/books/book61284.html?category=17&language=1&view=category