A Comparison of Induction Motor Starting Methods Being Powered by a Diesel-Generator Set

Starting induction motors on isolated or weak systems is a highly dynamic process that can cause motor and load damage as well as electrical network fluctuations. Mechanical damage is associated with the high starting current drawn by a ramping induction motor. In order to compensate the load increase, the voltage of the electrical system decreases. Different starting methods can be applied to the electrical system to reduce these and other starting method issues. The purpose of this thesis is to build accurate and usable simulation models that can aid the designer in making the choice of an appropriate motor starting method. The specific case addressed is the situation where a diesel-generator set is used as the electrical supplied source to the induction motor. The most commonly used starting methods equivalent models are simulated and compared to each other. The main contributions of this thesis is that motor dynamic impedance is continuously calculated and fed back to the generator model to simulate the coupling of the electrical system. The comparative analysis given by the simulations has shown reasonably similar characteristics to other comparative studies. The diesel-generator and induction motor simulations have shown good results, and can adequately demonstrate the dynamics for testing and comparing the starting methods. Further work is suggested to refine the equivalent impedance presented in this thesis.

Distinguished Fellowship Awards Luncheon

What a treat it is to be here today at this distinguished fellowship awards luncheon to recognize and celebrate our 18 graduate students who are recipients of this year's awards. For each of you, I see your award as a wonderful recognition of your talent and promise. We are so pleased to have you learning and working with us in your chosen departments in the Institute of Agriculture and Natural Resources, and on behalf of all of us in the Institute, I extend the heartiest of congratulations to each of you.

Distinguished Fellowship Awards Luncheon

It seems to me the best way to start off any congratulatory remarks is to say, quite simply - congratulations.

Distinguished Fellowship Awards Luncheon

What a terrific day this is! First, we have the pleasure of recognizing those of you who are receiving fellowship awards, and that always is a treat. Second, we are so very pleased today to initiate the Darrell Nelson Excellence in Graduate Student Advising Award, named in honor of our recently retired Agricultural Research Division dean and director. Yes, this is a very good day!

Distinguished Fellowship Awards Luncheon

What a great pleasure it is to see everyone gathered for this distinguished fellowship awards luncheon. My heartiest congratulations to each of you who is a fellowship recipient. I know all of us here today are so pleased for you, and so pleased to have you with us.

Distinguished Fellowship Awards Luncheon

It's a true pleasure to see everyone here today as we gather for this distinguished fellowship awards luncheon. On behalf of everyone present, I extend heartiest congratulations to each of you who is an award recipient. We are so pleased for you, who are being honored, and we are so delighted to have you with us.