en 2-Industrial Electronics Industrial Electronics Research Paper Research Paper <div style="text-align: justify;"><span style="font-family:Times New Roman;"><span style="font-size:14px;"><span style="color:#000000;">In the new advanced drive schemes, identification and modeling of the load complex characteristics can play an important role to predict the dynamic performance of the proposed control strategy. The novelty of this paper consists in the classification of the different types of the nonlinear loads which the electrical drive systems may encounter. In this study, nonlinear components of mechanical loads are divided into two groups. The first type includes nonlinear phenomenon caused by the nature of load which is predictable and identifiable. Another type of loads nonlinear characteristic happens due to the occurrence of a mechanical fault in motor, coupling or load parts. Generally, this type of non-intended nonlinear effect is not predictable and often occurs in the installation and operation stage of the drive system utilization. In this paper, the performance of an induction servo drive system has been simulated under the influence of different types of non-linear industrial loads.</span></span></span></div> Backlash Unbalancing, Crankshaft Mechanism, Multi Mass System, Non-Linear Load, Servo Drive. 13 25 http://ijeee.iust.ac.ir/browse.php?a_code=A-10-3704-1&slc_lang=en&sid=1 H. Azizi Moghaddam hmoghaddam@nri.ac.ir 1800319475328460013375 1800319475328460013375 Yes Rotating Electrical Machines Research group, Niroo Research Institute, Tehran, Iran. A. Farhadi farhadi.arman71@gmail.com 1800319475328460013376 1800319475328460013376 No Department of Electrical and Computer Engineering, K. N. Toosi University of Technology, Tehran, Iran. S. Mohamadian s.mohamadian@du.ac.ir 1800319475328460013377 1800319475328460013377 No School of Engineering, Damghan University, Damghan, Iran.