commutation torque ripple
A Novel Method for Commutation Torque Ripple Reduction of Four-Switch, Three-Phase Brushless DC Motor Drive
... high torque density, low maintenance and ease of control ...developed torque is theoretically constant. However, in practice torque ripple exists due to the stator inductance, cogging effect ...
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Reduction of Commutation Torque Ripple in Sensorless Brushless DC Motor using Fuzzy Logic Controller
... minimize torque ripple for the entire speed range, a ample analysis of commutation torque ripple was made according to phase advancing (PA) commutation control ...the ...
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Modified Sepic Converter and Three-Level NPC Inverter for Reducing Commutation Torque Ripple in BLDC Motor
... a commutation torque ripple decrease circuit has been proposed utilizing 3-level DCMLI with changed SEPIC converter and a dc-transport voltage selector ...in torque ripple decrease in ...
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Reduction of Commutation Torque Ripple in Sensorless Brushless DC Motor Using Fuzzy Logic Controller
... is commutation control. On the other hand, they show a high torque ripple characteristics caused by nonideal commutation ...minimize torque ripple for the entire speed range, a ...
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Reduction in Commutation Torque Ripple in Sensor less BLDC Motor Fed by Pvcells Using Fuzzy Logic controller
... direct torque control (DTC) scheme is suggested in ...extracting torque and flux compensation term that can add further computational overload to low cost ...compensating torque fluctuation in PWM ON ...
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The Influence of DC-Link Voltage on Commutation Torque Ripple of Brushless DC Motors with Two-Segment Pulse-width Modulation Control Method
... of commutation torque ripple in the brushless DC motors with conduction angle of 120 electrical degrees could be possible by keeping current slope of outgoing and incoming phase in commutation ...
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Torque ripple minimization of a BLDC motor drive by using electronic commutation and speed, current controllers
... the commutation torque ripple when a single current sensor is used in the dc link of the inverter to regulate the current flowing through two phases in ...reducing commutation torque ...
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Mitigation of Torque Ripple & Detect Rotor Position of BLDC Motor
... have torque pulsations due to Back EMF desertion from the ideal. Torque ripple produces noise and problem of speed ...electronic commutation, diode freewheeling of inactive phases and High ...
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Analysis of Z-Source Inverter Fed Brushless Dc Motor
... [6]Y.Liu,Z.Q.Zhu,"commutation-torque- ripple minimization in Direct-torque- controlled PM Brushless DC Drives” IEEE ...W.L.Soong,"Pulsating torque minimization techniques for ...
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POSITION AND SPEED CONTROL OF BRUSHLESS DC MOTORS USING SENSORLESS TECHNIQUES
... large torque to inertia ...proper commutation of the current, this information can be obtained using hall sensors mounted on a ...and ripple-free instantaneous torque of BLDC motor, the rotor ...
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An Improved SEPIC Converter and NPC Inverter for the Supression of Torque Ripple in PMSM Using PWM
... [1]. Torque ripple, which occurs during commutation period, has always been one major factor in preventing BLDCM from achieving high ...of torque ripple [3]- ...minimum torque ...
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Mitigation of Commutation Torque Ripples in Permanent Magnet Brushless DC Motor
... in commutation interval is presented in paper ...of commutation interval from the terminal voltage of BLDC motor and it is also calculates PWM duty ratio using the measured commutation interval to ...
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Fuzzy Logic Control Based Torque Ripple Minimization in Brushless DC Motor using Modified SEPIC Converter
... the commutation period are ...and commutation torque ripple is greatly reduced at low ...the commutation torque ripple is reduced at high ...achieve torque ...
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A New Approach to Direct Torque Control of Induction Motor with Teaching Learning Based Optimization
... undesired torque and flux ripple may occur in conventional direct torque control(DTC) induction motor ...minimize torque ripple, flux ripple, and stator current ...
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Torque Ripple Reduction in a SynRM at a Constant Average Torque by Means of Current Harmonics Injection
... electromagnetic torque model of the SynRM based to the co-energy ...electromagnetic torque with a non-zero average ...average torque at the constant current RMS value is ...the torque ripples ...
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DIGITAL SIMULATION OF MULTILEVEL INVERTER FED INDUCTION MOTOR DRIVE
... A nine level inverter consists of a series H-bridge inverter units connected to three phase induction motor. The general function of this multilevel inverter is to synthesize a desired voltage from several dc sources. ...
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Particle Swarm Optimization Based Direct Torque Control of Brushless DC Motor
... direct torque control (DTC) of BLDC motor drives by using particle swarm optimization ...versus torque characteristics. Direct torque control (DTC) is one of the efficient methods used in variable ...
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A Comparative Analysis of Direct Torque Control and Direct Torque Control using Space Vector Modulation for Torque Ripple Reduction
... direct torque control strategy. Direct torque control strategy was initially described by German and Japanese researchers Takahashi and ...Direct torque control (DTC) drives are finding great ...
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Direct Torque Control of 5-phase 10/8 Switched Reluctance Motor by Using Fuzzy Method
... reluctance torque, produced from magnetic saliency between stator poles and rotor ...large torque ripple and high noise level caused by its doubly salient structure restrict its wide application in ...
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PWM Current Controller for Switched Reluctance Motor Drives
... low-ripple torque con trol of switched reluctance motor drives,” IEEE ...offline torque sharing function for torque ripple reduction in switched reluctance motor drives,” IEEE ...
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