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This study describes a technique to determine the core loss in different parts of an induction motor (IM) for any types of electric power supply. To calculate the core loss, flux density waveforms are determined in different parts of the motor. Different forms of Steinmetz equation are used for the core-loss calculation. The coefficients of these Steinmetz equations are determined using the loss data...
This work proposes an analytical method for determining nonlinear magnetization curve and magnetizing inductance of an induction motor (IM) from lamination design details and core material data i.e the B-H curve. The operating point of an IM on nonlinear B-H curve varies with load on the motor. Due to the nonlinear nature of the B-H curve, the magnetizing inductance of an IM should not remain constant...
This paper presents the development of a cosimulation platform of induction motor direct torque control (DTC) drive. This paper provides advanced modeling and simulation tool for induction motor drive. The proposed simulation platform allows a coupled analysis that links finite element analysis (FEA) with the simplorer for the more realistic simulation, analysis and validation. With the help of finite...
Induction motors are presently used in many electric vehicle applications. As a result, their control methods have received a lot of attention. One of the efficient method of induction motor control is the direct torque control (DTC). In this paper, a design method for direct torque control of induction motor has been developed. A Verilog hardware description language is used to implement the developed...
For an electric vehicle, motor selection is very important as it mainly determine its efficiency, cost and reliability. A particular motor may behave differently under different driving conditions. The driving behavior for an urban and suburban region is represented by its drive cycle. Thus, motor must be analyzed based on different drive cycles. In this paper, analysis of an induction motor for different...
This paper presents an improved dynamic model with incorporating the saturation effects for an induction motor (IM). The improved model is simulated with MAT-LAB/SIMULINK software for transient response in terms of electromagnetic torque, rotor speed and stator current at no-load and on-load. The obtained simulated results provide a clear evidence that the conventional unsaturated model fails to predict...
The use of multiobjective optimization technique in determining the values of the steady-state equivalent circuit parameters of a three-phase squirrel-cage induction machine is discussed. The identification procedure is based on the steady state phase current versus slip and torque versus slip characteristics. Nonlinearities in the Induction machine such as saturation effects and skin effects are...
Equivalent circuit approach is the most generally used method for the analysis of induction motor (IM). Equivalent circuit method is based on the assumption that IM operates in the linear region of magnetizing curve. However, in practice many a times motor needs to operate in the non-linear magnetic region where the magnetic saturation of the core cannot be avoided. This causes deviation in the results...
Electric vehicle (EV) application requires motor used in the drivetrain to be highly efficient, compact in size and of high power density. A unique and novel means to achieve the above motor features is using dual rotor motor (DRM). This paper presents the various possible structures of DRM. The analytical model of hybrid induction motor (IM) — permanent magnet motor (PM) based DRM is presented. Analytical...
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