Hosein Oghabneshin - PhD Student, Islamic Azad University, Yadegare Imam Khomeini, Shahrerey
Mohammad Dehghandar - PhD Student, Imam Khomeini International University
Mostafa Amini - PhD student, Islamic Azad University, Karaj

In this paper, firstly, SM-PI is used, which sliding mode control (SMC) together with PI controller brought the performance improvement results of PMSM synchronous machine. sliding mode control (SMC) is a nonlinear control method that alters the dynamics of a nonlinear system by applying a discontinuous control signal (or more rigorously, a set-valued control signal) that forces the system to "slide" along a cross-section of the system's normal behavior. In the second article, the PID controller is used in the fieldoriented control (FOC) (also called vector control) method is a variable-frequency drive (VFD) control method in which the stator currents of a three-phase AC or brushless DC electric motor are identified as two orthogonal components that can be visualized with a vector. Finally, the genetic algorithm is used in FOC to optimize the PI controller.

Sliding Mode Control, Genetic Algorithm Technique (GA), PI Control, Field Oriented Control, Construction machinery