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In spite of many exclusive advantages of the switched reluctance motor (SRM), acoustic noise of this motor is high and it is necessary to do more research on the noise reduction which is the main objective of the present paper. The noise reduction procedure proposed here is included three separate parts: (1) stator design parameters optimization, (2) rotor pole design shape optimization and (3) inserting...
Due to the rotor position of switched reluctance motor (SRM) is a highly nonlinear function of stator windings current and flux linkage, so general linear and analytical methods are difficult to achieve precision results, in the paper, a method is presented that a genetic RBF neural network (RBFNN) is used to rotor position sensorless detection of SRM. Hence, extensive mapping ability of neural network...
Switched reluctance motors (SRM) are one of the most reliable and cost effective motors and their applications are increasing in industry. However, it suffers from high level of torque ripple. In this paper, a new configuration for stator and rotor of SRM is presented. In the proposed method, a new saliency is developed to remove negative torque and therefore decrease torque ripple and acoustic noise,...
Optimum design of switched reluctance motor (SRM) and it control circuits require a knowledge of its parameters, Such as inductance, flux linkage and Torque. In this paper, a model of SRM has been developed and analysed with ANSYS Workbench. The variation of Inductance, flux density and directional force with respect to rotor position for two different stator pole shapes has been analysed. It is observed...
In aircraft electric motor drive fuel delivery system, the motor must be characterized by high power density, reliability, less size, less weight and high speed [1]. The high speed operation, fault tolerance, high power density makes switched reluctance motor an ideal candidate for high speed aerospace applications. This paper investigates the application potential of soft magnetic composite material...
Switched reluctance motor (SRM) for usage as a spindle drive in a spinning machine along with it's power electronics converter will be presented in this paper. The SRM drive system is intended to meet the increasing demands of the textile industry with respect to manufacturing time, costs and quality of textile twists. The desired SRM drive system is supposed to run at high speed up to 30000 rpm and...
Rotor position sensing is an essential part of switched reluctance (SR) motor drive in order to synchronize the pulses of phase current with the period of rising inductance of the proper motor phase. This paper presents a complete and novel method to detect the rotor position at standstill and also low speeds in a new field assisted switched reluctance motor. In this method, a high frequency sine...
The switched reluctance (SR) motor is a simple and robust machine, which has found application over a wide power and speed ranges in different shapes and geometries. This paper briefly reviews the different types of SR motors with different geometries and then presents a new configuration for a two phase SR motor with shaped and skewed rotor poles. This motor has the ability to start and run in a...
This paper presents a novel method to indirectly detect the rotor position at standstill and also at low speeds in switched reluctance motor. The method utilizes current phase variation with respect to input voltage at a resonant frequency which is obtained at aligned rotor position. A circuit consists of an external sampling resistance R, motor phase inductance, L (0), and an external capacitance,...
This paper presents the results of an investigation of torque development in the air gap of a 6/4 and 8/6 switched reluctance machines (SRM). Due to the force components acting on the rotor enables us to provide more accurate picture of the torque generation and vibration in this family of electric machines. The analysis for the torque is computed by finite element method. The torque optimisation...
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