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Compared with the conventional short-pitched winding switched reluctance machine, the fully-pitched winding machine produces the effective electromagnetic torque by utilizing the changing mutual inductances among the phase windings. Previous works show that the fully-pitched winding machine can offer better circuit utilization, higher ratio of torque and current and higher efficiency. This paper compares...
Switched Reluctance Motors (SRMs) show great advantages of structural simplicity and high reliability in aerial starter/generator applications. This paper introduces the implementation of a high speed switched reluctance starter/generator system. First, the paper proposes a modeling method for switched reluctance starter/generator system, including switched reluctance machine and power circuit. The...
Conventional short-pitched winding switched reluctance machine realizes the electromechanical energy conversion by utilizing only the rising region of phase inductance at motoring mode, or the descending region of phase inductance at generating mode. Compared with the conventional switched reluctance machine, the fully-pitched winding machine realizes the electromechanical energy conversion by utilizing...
Due to the characteristics of high reliability, wide speed scope with high efficiency, and low cost, Switched Reluctance Generator (SRG) system is suitable for applications in the field of variable-speed constant-voltage generation, such as wind power generation, flywheel energy storage, electric vehicle, aircraft power generator, etc. In this paper, a nonlinear dynamic model of SRG system is established,...
Compared with the conventional short-pitched winding switched reluctance machine, the fully-pitched winding machine can far better utilize the electric circuit. Due to the differences in principles of between motoring operation and generating operation regarding to the fully-pitched winding switched reluctance machine, this paper will propose a novel control strategy of generating operation of a three-phase...
Switched reluctance motors (SRMs) have a series of advantages prior to other type motors, while the problems of considerable vibration and acoustic noise limit its application. For the radial vibration of stator is the primary origin of the acoustic noise of SRMs, how to reduce the radial vibration of SRMs is the effective way to the research of low acoustic noise. Recently many control methods are...
The problems of vibration noise and torque ripple limit the application of switched reluctance motors (SRMs). Previously various efforts for these two aspects are isolated. A novel fixed-frequency control method that can both decrease the vibration and the torque ripple simultaneously is presented in this paper, by introducing the two-step and three-step commutation methods into the improved direct...
The problems of vibration noise and torque ripple limit the application of switched reluctance motors (SRM). Previous various efforts for these two aspects are isolative. A novel control strategy that can decrease the vibration and the torque ripple simultaneously is presented in this paper, by introducing the two-step and three-step commutation methods into the direct instantaneous torque control...
This paper presents a back propagation neural network (BPNN) application for modeling of SRM, incorporating finite element analysis. Firstly, the magnetic curve of ferromagnetic material is smoothed by a BPNN. Secondly, this paper deduces the formula of magnetic force based on the local Jacobian derivative method and the magnetic vector potential. Thirdly, the determination of the optimal BPNN structures...
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