The impact of motor starting on the quality of the industrial electricity network

Abstract

The use of electric motors in the industrial sector has become increasingly important, especially with the development of power electronics. However, the use of these motors poses many problems, including the starting problem. Our work focuses on the study of the impact of the starting of electric motors on the quality of the industrial electricity grid, such as voltage drops during and after the starting, increasing the starting current to exorbitant values, and the starting time becoming too long. Besides, we propose solutions for these problems, such as compensation of the reactive power, insertion of VFD, and lag in the starting time of the motors. In the end, do a comparative study between these different solutions to justify the choice that is the insertion of VFD.