Results 21 to 30 of about 78,110 (303)
Speed control with low armature loss for very small sensorless brushed DC motors [PDF]
, 2009 A method for speed control of brushed dc motors is presented. It is particularly applicable to motors with armatures of less than 1 cm3. Motors with very small armatures are difficult to control using the usual pulsewidth-modulation (PWM) approach and ...
McLeish, J. +2 more
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IEEE AccessSpace Vector Pulse Width Modulation (SVPWM) is widely utilized in modern motor drive systems due to its superior DC-link voltage utilization, reduced harmonic distortion, and lower torque ripple compared to conventional sinusoidal PWM methods.
Byoung-Wook Jo, Dae-Hyeon Kim, Jin Hur
doaj +1 more source
Design and test of a novel 1kw Stirling engine generator
Nihon Kikai Gakkai ronbunshu, 2023 This paper describes a practical design of a novel Stirling engine generator and 1kW machine test data. This machine’s configuration is a 4 cylinder double acting Stirling engine coupled with a Halbach PM generator in line.
Tetsumi WATANABE, Kazumasa SHIWAKU
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Research on Traction Motor Bearing Electric Erosion of Metro Vehicle and Its Improvement Measures
机车电传动, 2021 In order to effectively solve the problem of electric erosion of traction motor bearing, from the source of shaft voltage,the cause of common mode voltage was studied, and the parasitic capacitance of motor was analyzed.
Zhixiao LUO
doaj
Design and Implementation of Position Estimator Algorithm on Voice Coil Motor [PDF]
, 2018 Voice Coil Motors (VCMs) have been an inevitable element in the mechanisms that have been used for precise positioning in the applications like 3D printing., micro-stereolithography., etc.
Deshmukh, Suhas P. +4 more
core +1 more source
Verification of Shaft Voltage Reduction Effect Using Layered-Shield in EV Traction Motors
IEEE AccessShaft voltage generated in electric vehicle (EV) motors is a critical issue as it can lead to motor performance degradation and damage, potentially resulting in vehicle fault and endangering the driver’s safety.
Jun-Hyeok Heo, Jun-Kyu Kang, Jin Hur
doaj +1 more source
PENGARUH JARAK MISALIGNMENT DRIVE SHAFT COOLING TOWER TERHADAP TEGANGAN NORMAL DAN TEGANGAN GESER
Rekayasa Mesin, 2022 The purpose of this study was to determine the effect of misalignment distance of Cooling Tower drive shaft on normal stress and shear stress. Tensions that occur on the shaft continuously for a long time cause the shaft to experience fatigue.
Rachmat Subagyo +4 more
doaj +1 more source
EnergiesIndustrial electric motors powered by variable frequency drives (VFDs) offer better controllability as compared to the conventional sinusoid-fed motors. However, the switching transients of VFDs induce shaft voltage in electric motors, which can lead to ...
Zuhair Abbas, Arifa Zahir, Jin Hur
doaj +1 more source
Twin-capacitive shaft angle encoder with analog output signal [PDF]
, 1977 A precision capacitive shaft encoder providing a dc signal corresponding to the angular position of a shaft is described. Two variable capacitances are coupled in tandem by a rotatable shaft.
Hruby, R. J., Wilson, R. L.
core +1 more source
A Shaft Generator System without Output Voltage Distortion
IEEJ Transactions on Industry Applications, 1999 A shaft generator system, which consists of a shaft generator, a rectifier, an externally commutated thyristor inverter, an ac reactor, and a synchronous condenser, is being increasingly used mainly in large ships. Conventional type of the shaft generator system has a fundamental drawback of involving a large amount of harmonics in the output voltage ...
Shoji Nishikata +3 more
openaire +2 more sources