Ramadan A. Elmoudi,1 Mustafa R. Abuzeid2, Nasr E. Shtawa2
1Electrical and Electronic Engineering Dept Academy of Graduate Studies Tripoli – LIBYA
2Electrical and Electronics Engineering Dept Eljabel Elgarbi University, Faculty of Engineering –
Some industrial applications entail using two electrical coupled DC motors work together with
same speed and different load on each motor; this can be achieved easily when the motors are
series or shunt, but it is some difficult when the motors are separately excited.
This paper have showed by simulation, two techniques for electrical coupling of two identical
permanent-magnet DC motors with different load on each motor and their speeds are same during
transient and steady state interval.