Due to the high percentage of induction motors in industrial market, there exist a large opportunity for energy savings. Replacement of working induction motors with more efficient ones can be an important resource for energy savings. A calculation of energy savings and payback periods, as a result of such a replacement, based on nameplate motor efficiency or manufacture’s data can lead to larg...

Many researches have been carried out to induction motors for starting, braking, speed reversal and speed control, because they are relatively cheap, reliable and rugged machines due to absence of slip rings or commutators. Induction motors exhibit highly coupled, nonlinear time varying system which is difficult to control since some state variables are difficult to be measured. However, recent...

A three-level neutral point clamped inverter with three phase legs is often used to power three-phase electrical motors. This type of multilevel has its advantages over two-level inverters. The main are lower harmonic distortion and less stress on motor windings. can be also as a source for two-phase induction motor. one-phase starting capacitor auxiliary windings in fact In this article, we sh...

Extracting features from original signals is a key procedure for traditional fault diagnosis of induction motors, as it directly influences the performance of fault recognition. However, high quality features need expert knowledge and human intervention. In this paper, a deep learning approach based on deep belief networks (DBN) is developed to learn features from frequency distribution of vibr...

In this paper, a new approach is proposed for the optimum design of single-phase induction motor. By using the classical design equations and the evolutionary algorithms such as Genetic Algorithms (GA), Particle Swarm Optimization (PSO) and Modified Particle Swarm Optimization (MPSO), a Single Phase Induction Motor (SPIM) was designed with the maximum efficiency. The Finite Element Method (FEM)...

Induction motors have gained a renewed interest due to this new shift from conventional power sources electric power. These are known for their high commencing torque, adequate speed control and reasonable overload capacity. However, induction an innate thermal issue wherein lifespan performance strongly temperature dependent. Hence, it is highly essential focus on the management aspect of thes...

Abstract The induction motors are back bone of the modern industry and play very important role in manufacturing transportation sectors. motor faults mainly classified into internal such as inter turn short circuits , broken rotors external over load, voltage asymmetry supply voltage. identification type fault is for safe operation preventing risk machine failures. In this work, a Bidirectional...

The aim of this paper is to prove that fuzzy logic algorithm is a suitable control technique for fast processes such as electrical machines. This theory has been experimented on different kinds of electrical machines such as stepping motors, dc motors and induction machines (with 6 phases) and the experimental results show that the proposed fuzzy logic algorithm is the most suitable control tec...

The paper presents a reliability assessment of a widely used protection system of large power squirrel cage induction motors. In conjunction with published field induction motors Failure data this assessment effort is based on a integrated predictive analysis using three methods: (1) a Fault Tree Analysis (FTA) that allows to identify and then quantify the initiating failure cause weighting fac...

The normal functioning of induction motors depend largely on ball bearing. Proper functioning and operation of ball bearing is the result of its maintenance by condition monitoring. Out of the various measures of condition monitoring vibration monitoring is the most extensively used and economical technique to detect, identify and distinguish fault in induction motors. In this research paper in...