en عمومى General پژوهشي Research paper <div style="text-align: justify;"><span style="font-size:10.0pt"><span new="" roman="" style="font-family:" times="">Economic approach and optimization in rail transportation systems led to the introduction of the mono inverter dual parallel motor (MIDP) system. Most researchers introduce the model predictive control (MPC) method to drive this system in order to overcome the problem of load torque inequality on the wheels. But the obtained control signals do not result in the proper operation of the MIDP system, because the cost function is solved online or evaluated by the limited number of control signals. The present paper introduces an energy-based predictive speed control instead of the conventional proportional-integral controller in the outer loop and uses Pontryagin&rsquo;s maximum principle to regulate electrical currents in the inner loop. Since this method solved the quadratic-linear cost functions offline, the control signals of the MIDP system are obtained as linear-parametric functions. After modeling and simplifying the mathematical equations, the introduced method is simulated and compared with conventional Finite and Infinite Control Set-MPC methods. The results indicate the agility and high accuracy of the controllers in both transient and steady states.</span></span></div> Mono Inverter Dual Parallel (MIDP), Model Predictive Control (MPC), Permanent Magnet Synchronous Motor (PMSM) 11 26 http://jocee.kntu.ac.ir/browse.php?a_code=A-10-8-1&slc_lang=en&sid=1 Mehdi Fadaie Abras mehdi.fadaie.a@gmail.com 1003194753284600232 1003194753284600232 No Department of Electrical Engineering, Faculty of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran Karim Abbaszadeh abbaszadeh@kntu.ac.ir 1003194753284600233 1003194753284600233 Yes Department of Electrical Engineering, Faculty of Electrical Engineering K. N. Toosi University of Technology, Tehran, Iran Alireza Siadatan a_siadatan@sbu.ac.ir 1003194753284600234 1003194753284600234 No Department of Electrical Engineering, College of Technical and Engineering West Tehran Branch, Islamic Azad University, Tehran, Iran