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The extensive applications of switched reluctance motor (SRM) have been limited due to its drawback of torque ripple. Thus, the reduction of torque ripple is an important problem in studying the SRM. A novel 16/10 segmented SRM (SSRM) is proposed in this paper. The proposed SSRM performs well in terms of torque ripple and tolerant-fault characteristic. The stator of the proposed structure is constructed...
Position sensors like hall sensors, optical encoder and electromagnetic sensors are widely used in motor drive systems for providing reliable rotor positions for the motors like switched reluctance motors and brushless DC motors. However, the position measurement effects of most traditional sensors are highly dependent on the operational environmental conditions. In this paper, a method of using the...
There is a variety of converter topologies applicable for switched reluctance machine. The simplicity, reliability, and suitability are key factors to consider for converter selection for the motor. The selection of switching schemes is also of worth importance for either converter selection. This paper presents the calculation method of switching losses in asymmetrical H-bridge converter for the...
This paper presents a comparative performance analysis of segmental type switched reluctance motor (SRM) for heating, ventilation, and air conditioning (HVAC) applications. Electric motors are the basic components of HVAC system, which control the airflow and therefore cannot be separated from it. Hence, a motor with high efficiency, high electric utilization, and variable speed drives is necessary...
The paper presents combined clustering RBF neural network as a tool to develop the model of the SRM. Combined clustering algorithm is presented here to determine node number of hidden layer and center of RBF neural network. First, the subtractive clustering algorithm is used to find the initial clustering center. FCM(Fuzzy c-means) clustering algorithm is used for further adjustment and effectiveness...
In this paper, comparisons between two permanent-magnet-free (PM-free) machines, namely a wound-field flux-switching machine (WFFSM) and a switched reluctance machine (SRM), covering skewed-rotor and straight-rotor structures are conducted. The topologies and operation principles of the WFFSM are illustrated firstly. Then, the effects of rotor skewing angle on static characteristics, e.g., open-circuit...
In order to reduce noise and vibration in switched reluctance motors (SRM), many kinds of commutation methods have been proposed. One of them is well-known as 2-stage commutation method. However, it has a defect which is revealed particularly when SRM is operated at high speed and high load condition. In this study, through the magnetic-structural coupled analysis using FEM and the mathematical analysis...
This paper presents a control strategy of integrated switched reluctance motor(SRM) base on split-winding method. A novel SRM converter topology which integrated driving mode and battery charger are proposed in EV application. Due to integrate the winding of motor, the boost inductance is limited by the phase winding of the motor, so the performance of the integrated battery charger is cut down. In...
The switched reluctance motor (SRM) is suitable for high-speed driving and enables high output. However, it is less efficient than other motors. This is due to an increase in iron loss caused by high speed operation. Therefore, in this paper, we adjusted firing angle and verified that firing angle realizing maximum efficiency exists by changing current waveform and loss. It was confirmed that the...
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