نتایج جستجو برای: SR Motor

تعداد نتایج: 186792  

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...

Journal: :Adapted physical activity quarterly : APAQ 2013
Claire Sangster Jokić Helene Polatajko David Whitebread

Children with developmental coordination disorder (DCD) experience difficulty performing everyday motor tasks. It is has been suggested that children with DCD have fewer self-regulatory (SR) skills with which to acquire motor skills. This article presents the results of an exploratory study examining the development of SR competence among ten 7-9-year-old children with DCD participating in the ...

Shaft 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. Direct sensors such as, Hall effect and optical encoder are commonly used in SR motors. The purpose of this paper is to present an indirect shaft positioning sensing known as "sensorless " control ...

2012
N. H. Mvungi

Control of commutation of switched reluctance (SR) motor has been an area of interest for researchers for sometime now with mixed successes in addressing the inherent challenges. New technologies, processing schemes and methods have been adopted to make sensorless SR drive a reality. There are a number of conceptual, offline, analytical and online solutions in literature that have varying compl...

In this paper a fuzzy expert system for predicting the performance of a switched reluctance motor has been developed. The design vector consists of design parameters, and output performance variables are efficiency and torque ripple. An accurate analysis program based on Improved Magnetic Equivalent Circuit (IMEC) method has been used to generate the input-output data. These input-output data i...

2014
R. RAJASEKARAN

A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an Interior Permanent-Magnet Synchronous Motor (IPMSM). This paper presents a detailed study about the design of high speed switched reluctance motor and its applications in various fields of industries. This paper contains the basic principles of a motor and various S...

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: :Neurology 1997
S R Schwid M D Petrie M P McDermott D S Tierney D H Mason A D Goodman

OBJECTIVE To evaluate the efficacy of 4-aminopyridine sustained release (4AP SR) (fampridine, EL-970) using quantitative measures of motor function in multiple sclerosis (MS) patients. BACKGROUND In vitro, 4AP improves conduction through demyelinated axons. A previous multicenter trial of 4AP SR using the Expanded Disability Status Scale (EDSS) as the primary outcome was unable to establish c...

2011
R. M. Autee

The first part of paper describes step by step installation of Switched Reluctance Motor & its drive. A special procedure for installation (Mechanical as well as Electrical) is developed in order to reduce acoustic noise, EMI interference and torque ripple of a motor. A serious electrical interference problem is solved using special designed screened cable. The second part of paper describes dy...

Journal: :IEEJ journal of industry applications 2023

A novel drive circuit for switched reluctance (SR) motor expanding the operating area under limited source voltage has been proposed by adding external capacitor in series to extend supply voltage. However, capacitance of not optimized be sufficient driving range SR motor. Subsequently, authors have previously a conservative design method linearizing winding current. there is problem that diffe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید