Magnetostriction and its contribution to noise in a PWM inverter fed induction machine

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-567-Pr2-570 ◽  
Author(s):  
L. Låftman
Keyword(s):  
Induction Machine ◽  
Pwm Inverter

scholarly journals PWM Inverter Drive for Modified Single Phase Induction Motors

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Gbenga A Olarinoye ◽  
Joseph Y Oricha
Keyword(s):  
Steady State ◽  
Power Supply ◽  
Motor Performance ◽  
Single Phase ◽  
Induction Machine ◽  
Open Loop ◽  
Two Phase ◽  
Pwm Inverter ◽  
Torque Pulsations ◽  
Domestic Power

This paper starts to look at the single phase induction machine which is a large consumer of domestic power supply with the goal of improving its operation. The existing capacitor-run single phase induction motor exhibits a significant level of torque pulsations during starting time and at steady state. This situation gives rise to noise and vibration in the machine. As part of efforts to mitigate these problems, an open loop two phase inverter drive strategy was developed and implemented in MATLAB/Simulink to reduce undesirable pulsations. Simulation results clearly show the superiority of motor performance under the proposed strategy when compared to motor performance under nominal power supply. Torque pulsations are eliminated at steady state with the consequence of reduced noise and heat loss to the environment. The motor is observed to develop significantly higher starting torque and its reliability is significantly increased as the strategy eliminates the need for capacitors and centrifugal switch associated with these motors.

Modeling and Simulation of Induction Motor based on Finite Element Analysis

2016 ◽  
Vol 7 (4) ◽  
pp. 1100
Author(s):  
Yemna Bensalem ◽  
Mohamed Naceur Abdelkrim
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modeling And Simulation ◽  
Induction Motor ◽  
Short Circuit ◽  
Induction Machine ◽  
Coupled Model ◽  
Simulation Platform ◽  
Element Analysis ◽  
Pwm Inverter

<p>This paper presents the development of a co-simulation platform of induction motor (IM). For the simulation, a coupled model is introduced which contains the control, the power electronics and also the induction machine. Each of these components is simulated in different software environments. So, this study provides an advanced modeling and simulation tools for IM which integrate all the components into one common simulation platform environment. In this work, the IM is created using Ansys-Maxwell based on Finite Element Analysis (FEA), whereas the power electronic converter is developed in Ansys-Simplorer and the control scheme is build in MATLAB-Simulink environment. Such structure can be useful for accurate design and allows coupling analysis for more realistic simulation. This platform is exploited to analyze the system models with faults caused by failures of different drive’s components. Here, two studies cases are presented: the first is the effects of a faulty device of the PWM inverter, and the second case is the influence of the short circuit of two stator phases. In order to study the performance of the control drive of the IM under fault conditions, a co-simulation of the global dynamic model has been proposed to analyze the IM behavior and control drives. In this work, the co-simulation has been performed; furthermore the simulation results of scalar control allowed verifying the precision of the proposed FEM platform.</p>

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