brushless ac drives
Improved speed estimation in sensorless PM brushless AC drives
... When the rotor position is deduced directly from the observed flux vector, Lagerquist [10] recommended that the flux vector should be preprocessed with a low-pass filter to improve the ac- curacy of the derived ...
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Improved current-regulated delta modulator for reducing switching frequency and low-frequency current error in permanent magnet brushless AC drives
... The value of To sum up, in steady-state operation, the proposed control strategy reduces the magnitude of the current ripple and also the switching frequency by: 1 avoiding the use of no[r] ...
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Online optimal flux-weakening control of permanent-magnet brushless AC drives
... the brushless ac motor having an interior radial magnet rotor, following a step change in the commanded speed, from 500 r/min in the constant torque range to 3500 r/min in the flux-weakening range, ...
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Influence and compensation of inverter voltage drop in direct torque-controlled four-switch three-phase PM brushless AC drives
... Abstract — This paper presents direct torque control methodology for a four-switch three-phase (FSTP) inverter fed permanent magnet (PM) brushless AC (BLAC) machine, with reference to a conventional ...
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BACK EMF DETECTION METHODS FOR SENSORLESS BRUSHLESS DC MOTOR DRIVES USING MATLAB/SIMULINK
... of brushless dc ...permanent-magnet brushless electric motor production have combined to enable reliable, cost-effective solution for a broad range of adjustable speed ...
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Fuzzy-Variable Gain PI Mode Control Applied to a Brushless AC Motor Drive
... Vector control, Variable gain PI Control, Fuzzy Logic Control and Fuzzy-Variable gain PI mode control are used to control a Brushless AC Motor. Referring to the obtained result, effectiveness and ...
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New Approach to a Hybrid Fuzzy Sliding Mode Control to a Brushless AC Motor Scheme
... of Brushless DC Motor for Performance Analysis using MATLAB/SIMULINK Environment,” International Journal on Recent and Innovation Trends in Computing and ...
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A Review on Power Factor Correction DC/DC Converters for Brushless Dc Motor Drives
... The objective is to study evaluate the effectiveness of Mid Day Meal,student’s perception forMid Day Meal, factors influences of Mid Day Meal, quality and quantit[r] ...
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Novel Types of AC Motors and Drives for Electrical and Hybrid Vehicles
... By present time two previously unknown laws of space- temporal spectral relations have been established by the authors of this paper as a result of the corresponding investigations [1-12, 14, 17-19]. These laws are true ...
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Feed-forward Torque Control of Interior Permanent Magnet Brushless AC Drive for Traction Applications
... To date, a great number of control schemes were proposed for IPM BLAC drives [1], [2], [6], [7], and [8]. However, all these studies were focused on the speed control where the output of the speed controller is ...
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Three-phase modular permanent magnet brushless machine for torque boosting on a downsized ICE vehicle
... modular brushless PM machine is demonstrated by measurements on a prototype 24-slot/22-pole machine which has been developed for the electrical torque-boost system which is illustrated in ...modular ...
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Analysis of 5 Level Boost AC-DC Converter Applied to High Speed Drives
... Electric drives offer an opportunity for efficient use of natural resources, clean and (comparatively) quiet power conversion, improved process control, and very attractive life-cycle ...electric drives ...
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Improved Sliding Mode Observer for Position Sensorless Open-Winding Permanent Magnet Brushless Motor Drives
... magnet brushless motor has been widely used in many industrial applications due to its advantageous features, such as small size, low cost, high power density, and high efficiency ...magnet brushless motor ...
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Microprocessor-Based Three-Phase Hysteresis Current Controller For AC Machine Drives
... 65 3.3 External components used 57 4.1 Interlock-time for the typical IGBT driver 64 LIST OF FIGURES FIGURE TITLE PAGE 1.1 Gantt chart for FYP I 3 1.2 Gantt chart for FYP II 4 1.3 Config[r] ...
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DIRECT TORQUE AND FIELD ORIENTED CONTROL OF PMSM USING SVPWM TECHNIQUE
... 275 | P a g e conveyor belts, robot arms, cranes, steel process lines, paper mills, waste water treatment and so on. With the advances in power semiconductor devices, converter topologies, microprocessors, application ...
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Fabrication and Development of Signal Loss Recovery System for AC Drives
... frequency drives system [3] presents the protection strategy for high voltage VFD system, by main circuit design and microprocessor protection software ...frequency drives in the industry [4] has ...
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Design and Analysis the Performance of Grid Connected Three Phase Inverter
... The above equations 4 and 5 show the push-pull inverter, from figure 5, output voltage thyristor voltage and current of the inverter. One of the main advantages of the push-pull inverter is that it is more efficient for ...
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ANALYSIS OF VARIOUS DIGITAL CONTROLLERS FOR BRUSHLESS DC MOTOR DRIVES
... Abstract: Brushless DC (BLDC) motors are now a day’s becoming popular in many other domestic, industrial and aerospace applications for the reason that of its light weight, high working speed and exceptional ...
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Review-A Controller of Brushless DC Motor for Electric Vehicle Manali P. Chavhan
... of brushless machines by detecting the third harmonic back electromotive force is a relatively simple and potentially low-cost ...for brushless dc motors operating under normal commutation. Two types of ...
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Automatic design of Synchronous Reluctance motors focusing on barrier shape optimization
... — AC Machines, AC Motors, AC Drives, Synchronous Motor Drives, Synchronous Reluctance Machines, Rotor Design, Design optimization, Pareto Optimization, Finite Element ...
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