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The single-sided stator configurations of the linear induction motor are analyzed, and the traction force and the normal force equations are derived using two different methods. The first way we solve the for the two-dimensional field distribution in the air gap and in the secondary, the mutual reactance and secondary impedance are derived account for the longitudinal end effect factor and other electromagnetic...
Because of the negative-sequence magnetic field, the single-phase induction motor has higher temperature, lower output torque and lower efficiency comparing with three-phase induction motor. Based on negative-sequence magnetic field compensation principle, this paper presents a new type single-phase motor with a special stator windings configuration to weaken the negative sequence magnetic field and...
The variable-speed asynchronous traction motor used on electric locomotive is investigated in this paper. Based on the geometrical dimensions and the finite element method, the field circuit coupled model of a traction motor is presented; the electromagnetic field and the performance of a traction motor operating on different state are calculated. The result shows the influence of the nonlinear phenomena,...
Linear Induction Motors (LIMs) have asymmetrical parameters. It causes LIMs thrust pulsation. Some methods have been proposed to avoid the thrust pulsation such as DTC (Direct Thrust Control) with PI control. These methods need parameter information. This paper proposes a method to identify the asymmetrical parameters by DC Decay Testing Method on alpha-beta axis. This method identifies the parameters...
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