Strategic Technology Group LLC
Design, Development and Manufacturing of Brushless
Permanent Magnet Motors, Motor Control & Motor Drives
|Simulation of Complete Three-Phase Motor Drive System using PSpice
About the Presenter:
Rakesh Dhawan is a twenty two years veteran of motors and motor drive Industry. He has developed
critical understanding and published on a wide range of motors, motor drives, high frequency
electromagnetic components, electric vehicles and switch mode power systems. He has co-authored over
25 publications in various refereed journals and conference proceedings and is an inventor on 7 issued or
pending US patents. He has served on the Technical committee of the Applied Power Electronics
Conference (APEC). He received the B. Tech (Electrical Engineering) degree from Indian Institute of
Technology (IIT), Kharagpur, India. He received his MS degrees from University of Minnesota under the
tutelage of Power Electronics pioneer Prof. Ned Mohan. He received his MBA from Old Dominion
He has been directly responsible for over twenty five successful product launches in his career many of
them involving brushless permanent magnet motor systems. Rakesh has conducted several workshops in
the recent past in the field of motors and motor drives. His interests include brushless permanent magnet
motor systems, light electric vehicles, electric bicycles, switch mode power supplies, solar inverters,
simulation, statistics, project management and new and ultra-fast product development methodologies.
Rakesh is a high energy individual with a difference; he combines technology excellence, leadership and
professional management skills with his inborn entrepreneurial instincts.
Rakesh is a member of IEEE and the Entrepreneur’s Organization (Washington-DC Chapter) and is very
keen on nurturing innovation and entrepreneurial talent in the field of technology development and
One of today's most pressing needs is to be able to predict the motor and system
performance with greater accuracy early on in the design stage. This can save a great deal of
time and money in reducing design uncertainties. This can further expedite the product
development cycle significantly. Many tools exist in the market today. Unfortunately, none
offer an integrated approach which is simple and useful. One ends up using a significant
number of tools to be able to predict the overall system performance reliably. That can be
quite expensive and unproductive!
After two years of intense modeling, we have created a powerful simulation methodology
which can model and analyze almost all aspects of a permanent magnet motor and motor
drive system. This methodology includes large signal as well as PWM switching models.
Large signal model is immensely helpful to look at frequency domain simulation and macro
system behavior. PWM switching model is quite effective in analyzing actual system behavior
when operated using an inverter driven by a digital signal processor (DSP) or a micro-
The modeling approach includes the following:
- Motor Optimization;
- Inverter Optimization;
- Software Optimization;
- Algorithm Development;
- Torque Speed Curve;
- Efficiency Curve;
- Torque Mode Control Performance;
- Speed Mode Control Performance;
- Motor and Inverter loss analysis;
- Harmonic Content Analysis
- Stability Analysis
- Time-Averaged and PWM PSpice switching models incorporating the following elements
- Motor Model;
- Controller Model;
- Inverter Model;
- Torque-Mode Control;
- Speed-Mode Control.
- Trapezoidal and Sinusoidal BackEMF;
- Incorporation of air-gap saturation effects;
- Speed dependent BackEMF modeling;
- Generation of torque-speed curve using time-averaged model (much faster simulation time);
- Incorporation of variable load with unique torque speed characteristics.
|Duration: 2 hours
Dates: Dec 16, 2011
Time: 10AM EST
|Phone: Toll Free US (877) 592-4848 Fax: Toll Free (888) 453-0997
Copyright © 2009 - 2010 STG All rights reserved.
|Registration fee includes the following:
- Access to live webinar;
- Online access for upto 6 months;
- Copy of the presentation slides;
- Certificate of completion.
MotorSolve and PSpice are trademarks of Infolytica and Cadence respectively.
Brushless Permanent Magnet Motor
Motor Drive Systems