Challenge

Project 2

RRitesh Dokhale23 Sept 2021

Brushless DC (BLDC) Motors are receiving significant attention from industries since the last decade. They are extremely reliable and weightless than other machines of comparable power outputs; also they are suitable for high speed applications such as in CNC milling machines. Although the design procedures of the machine are available as a concatenation of many different sources, the need for an unified, step-by-step design procedure from first principles of electromagnetic is an absolute requirement. The objective of this project is to design an Internal Permanent Magnet Brushless DC (IPMBLDC) Motor. Once it was determined what type and size of material available for stator and rotor, a reasonable size and power output estimated. Using general radial flux concept the design was refined. Software tool, RMxprt of ANSYS is used to build geometry of motor and to calculate basic design parameters, and then this design is taken into Maxwell 2D environment to further analyze it

his is a very preliminary design requirement before

starting design of any motor. The answer for this query is

usually given by, Equation (1).

𝑇=𝑘𝐷2𝐿 (1)

In this equation, T stands for torque given by motor, k

is a constant, D is rotor diameter and L is the axial length of

motor. It can be understood from Eq.1 that torque, in turn

power output of motor increases if its rotor diameter or

axial length are increased. Now if the length of motor gets

doubled, power output has to get doubled. On the other

hand, if diameter of rotor gets doubled, there is more room

for magnets available on rotor because increasing

diameter of rotor increases circumference of rotor

considerably. Considering this fact, in case of motors used

for submersible pump application is having much more

axial length compared to their rotor diameter. This is done

just to improve power output from motor

Project 2

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Ship work like thisin your own course.

Talk to a career counsellor

Ship work like this
in your own course.