Advances in Power Quality Analysis Techniques for Electrical Machines and Drives: A Review

Abstract

The electric machines are the elements most used at an industry level, and they represent the major power consumption of the productive processes. Particularly speaking, among all electric machines, the motors and their drives play a key role since they literally allow the motion interchange in the industrial processes; it could be said that they are the medullar column for moving the rest of the mechanical parts. Hence, their proper operation must be guaranteed in order to raise, as much as possible, their efficiency, and, as consequence, bring out the economic benefits. This review presents a general overview of the reported works that address the efficiency topic in motors and drives and in the power quality of the electric grid. This study speaks about the relationship existing between the motors and drives that induces electric disturbances into the grid, affecting its power quality, and also how these power disturbances present in the electrical network adversely affect, in turn, the motors and drives. In addition, the reported techniques that tackle the detection, classification, and mitigations of power quality disturbances are discussed. Additionally, several works are reviewed in order to present the panorama that show the evolution and advances in the techniques and tendencies in both senses: motors and drives affecting the power source quality and the power quality disturbances affecting the efficiency of motors and drives. A discussion of trends in techniques and future work about power quality analysis from the motors and drives efficiency viewpoint is provided. Finally, some prompts are made about alternative methods that could help in overcome the gaps until now detected in the reported approaches referring to the detection, classification and mitigation of power disturbances with views toward the improvement of the efficiency of motors and drives.

Research and calculation of the levels of higher harmonics of rotary electric machines in active-adaptive networks

“…In the process of operation, electric rotary machines generate groove harmonics in the electrical network [21,22]. The appearance of these harmonics is related to the magnetomotive force of the rotor winding.…”

Estimation of Excitation Current of a Synchronous Machine Using Machine Learning Methods

“…RR is a linear least squares method with an additional regularization parameter. The selection of the varied parameters presented in Table 8 was carried out according to previous [68][69][70] articles on related issues. The parametersalpha and max_iter are explained in the previous subsections, tol indicates the precision of the solution, while the novelty is the solver where the solver is the principle of model optimization.…”

Analytical study and real simulation for improving the safety of ageing nuclear facility using UPFC

“…The power quality (PQ) is affected by the equipment that is operated or connected electrically 2 – 4 . The classification of these power quality issues according to their definition and the power quality standards is illustrated in 4 – 6 .…”