نتایج جستجو برای: switched reluctance motor drive

تعداد نتایج: 262381  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1379

مسئله لرزش و نویز در موتورهای sr (موتور مدار مغناطیسی کلید شونده یا switched reluctance motor) در مطالعات علمی و تجاری متعدد به عنوان اصلی ترین گلوگاه طراحی در این فن اوری ذکر شده است . در سالهای اخیر با استفاده از کنترل هوشمند پیشرفتهای زیادی در حل این مشکل بدست آمده است . اما بیشتر مطالعات و راه حلهای ارائه شده در مورد لرزشها و نویزهای ناشی از ریپل گشتاور بوده است . با این حال براساس مطالعات ...

Journal: :Machines 2023

This paper presents the design of a switched reluctance motor (SRM) for direct-drive propulsion application light sport aircraft. The SRM is designed to replace 70 kW permanent magnet synchronous used in aerospace with similar dimensional constraints. As means achieving high torque density and efficiency, multi-objective framework optimize geometry parameters motor. In order further reduce weig...

Journal: :Engineering, Technology & Applied Science Research 2023

This study describes the direct torque control-DTC approach, based on Sliding Mode Control (SMC) technology with chattering reduction, for reducing ripple of Switched Reluctance Motor (SRM). The SRM control loop has been given SMC treatment to account low-frequency fluctuations in output. To maintain a consistent motor speed, sliding mode controller modifies value reference current. findings de...

Journal: :International Journal of Power Electronics and Drive Systems 2021

The paper presents the results of studies abnormal conditions in a switched reluctance drive (SRD) due to failures control algorithms. It discusses one most common algorithms for these drives without use sensors, which is simple and easy configure. practical application this algorithm showed that various anomalous phenomena could occur it, expressed, example, sharp increase amplitude phase curr...

S. M. Saghaeian Nezhad and G. R. Arab, V. Tahani,

Because of extreme local saturation at pole tips of excited phase and uncircular shape of rotor and stator, a Swithed Reluctance Motor (SRM) does not have a simple and accurate mathematical model. Therefore, the output control of this motor requires a robust controller which is not based on an accurate model of the process. Fuzzy controllers, to some extent, will satisfy these requirements. Tet...

2014
P. KAVITHA B. UMAMAHESWARI

This paper presents the speed control of SRM which is directly fed from an AC supply through a simple R dump converter. The controller uses fuzzy logic control (FLC) for switched reluctance motor (SRM) speed. The FLC performs a PI-like control strategy, giving the current reference variation based on speed error and its change. The performance of the drive system was evaluated through digital s...

2014
P. Srinivas

Since the magnetizing characteristics are highly non-linear in nature, the torque ripple is high in the Switched Reluctance Motor (SRM). The torque ripple can be minimized by using a novel control technique called Direct Torque Control (DTC). In DTC technique, torque is controlled directly through control of magnitude of the flux-linkage and change in speed of the stator flux vector. The flux a...

2012

drives are designed to increase product performance and system efficiency. One such motor type which can benefit from digital control is the switched reluctance (SR) motor. The SR motor brings advantages in both cost and reliability over other types of adjustable speed drives. These include its simple mechanical construction, high efficiency and high power density. On the other hand, large torq...

2009
P. VEENA R. JEYABHARATH M. RAJARAM

Direct torque control (DTC) of Switched reluctance motor is known to have simple control structure with comparable performance to that of field oriented control techniques. However, the role of optimal selection of the voltage space vector is one of the weakest points in a conventional DTC drive. In this paper optimal selection of voltage space vectors is achieved using neuro fuzzy controller. ...

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