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Work
I've been working as a lecturer in Electrical Engineering at Fr. C. Rodrigues Institute of Technology, Navi Mumbai. Our department is a group of dedicated, young and enthusiastic faculty members. I am presently teaching Computer Programming i.e. C++ to first year students. I have also taught Electrical Measurements & Measuring Instruments to second year engineering students. And I must say they are very bright, indeed. I'm also working on a couple of academic projects with our students.
I also have research experience. I was working as a Senior Research Fellow in Annasaheb Chudaman Patil College of Engineering, Navi Mumbai on a project under Board of Research in Nuclear Sciences, Department of Atomic Energy, Government of India.
It's basically a problem of low speed operation of induction motor fed from Variable Frequency Drive (VFD), if you know something about electrical engineering. For those of you who get frightened due to words like "voltage" or "current", forget it. Consider yourselves lucky that you don't have to thrive on these things! For those who take pride in playing with these things, comments or suggestions are welcome.
If you are still with me, then, induction motors are inherently designed for operation on constant frequency source. But if you want them to operate on different speeds by varying the supply frequency, there are problems. For one thing, cooling at speeds lower than rated speed is less effective. Further, with V/f control, torque reduces at very low speeds.