variable-speed drive system
Dynamic Simulation of Variable-Speed Valve-Controlled-Motor Drive System with a Power-Assisted Device
... The variable-speed electrohydraulic drive has been applied in hydraulic machines having power matching ...novel drive principle comprising a variable-speed valve-controlled-motor ...
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INFLUENCE OF LOW DELIVERY PRESSURE OF AIR COMPRESSOR ON MOTOR SPEED USING VARIABLE SPEED DRIVE
... Energy efficiency in compressed air has turn out to be a key issue on every Finance Directors and Plant Managers agenda. With ever increasing costs of energy the have to generate compressed air in the most energy ...
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Utilizing Data from a Sensorless AC Variable Speed Drive for Detecting Mechanical Misalignments
... motor-gearbox drive system has found that the developed model and detection approach for the variable of interest can discriminate between different misalignment severities, showing that it is ...
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Performance and stability analysis of an AC variable speed drive
... Appendix E has been written to solve the system poles. This function calculates the operational steady state conditions for set speeds and load torques and then determines the poles of the system by solving ...
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Kinematical characteristic of mechanical frictional variable speed drive
... new system of mechanical spherical conical friction ...differential variable speed drives is ...of speed variation they are altogether ...complete drive conversion unit kinematics and ...
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PLC and Fuzzy Logic Control of a Variable Frequency Drive
... A speed sensor was employed for speed feedback, a current sensor for load current feedback and an additional current sensor was attached to stator ...The speed control of motor achieved through PLC ...
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Design and Analysis of Soft Switching Variable Speed Drive
... The speed of the drives needs to be controlled according to its ...the speed control of DC motors is carried out in two ways namely Armature control and Field control ...the speed of the drive ...
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Study and Analysis of Differential Controlled Continuously Variable Drive
... transmission system in such a way that lower consumption and lower emission should takes ...Continuously variable drive is the type of automatic transmission that allows selection of infinite number ...
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Investigation in Induction Motor Starting and Speed Control with Variable Frequency Drive
... of Variable frequency drive, VFD fed induction machines are using more frequently in industry because of its decreasing cost and advantages of robustness, size and maintenance of induction motor over ...and ...
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Energy Saving Mechanism Using Variable Frequency Drives
... precise speed control of applications such as conveyors or winders, other parameters such as pressure, flow and even temperature may be accurately ...to drive the ...of speed, torque and power and ...
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Variable Speed BLDC Motor Drive Using PIC Microcontroller
... required speed will be given by the POT variation. The speed of the motor is displayed on ...proposed system the speed control of BLDC motor can be done automatically based on the potential ...
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Utilizing Data from a Sensorless AC Variable Speed Drive for Detecting Mechanical Misalignments
... a speed reducer while the second is a speed increaser so that the system maintains sufficient speed for ...control system consists of a programmable logic controller (PLC) for setting ...
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A. Single Degree of Freedom System
... motor, variable speed drive with excitation system , the absorber system and an optical device for the measurement of dynamic torsional amplitude are also shown in the above ...
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Using Variable Speed Control on Pump Application
... common variable speed drive (VSD) system applications and special interest has focused on improving their energy efficiency by using variable speed control instead of throttling ...
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Speed-Control of Energy Regulation Based Variable-Speed Electrohydraulic Drive
... the variable-speed (AKA variable- frequency) drive system to create a compound drive, in which the frequency converter adjusts the speed of the electric motor to satisfy ...
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RESEARCH REVIEW ON MATERIAL HANDLING SYSTEM FOR REBAR PROCESSING INDUSTRY
... Now, these equidistant rebars are conveyed through special chain conveyor which is maintaining the constant pitch and are fed to chamfering section. At this stage 8 numbers of rebars are chamfered simultaneously. These ...
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A Low Harmonic Drive System using ZSI for a Variable Speed Wind Turbine
... Space vector modulation (SVM) [8] is an algorithm for the control of pulse width modulation (PWM). It is used for the creation of alternating waveform (AC) waveform. It most commonly used in inverters, 3 phase ac powered ...
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Development Of A PI Speed Controller For DC Motor Drive Using Rabbit Microprocessor
... process variable and the desired value set point by computing and providing corrective action to adjust the input signal ...the system can gain stability and independent to external ...
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A Variable Speed Sensorless Induction Motor Drive Using DC Link Measurements
... synchronous speed of induction motor (Ns) depends on supply frequency (f) and number of poles ...‘f’. Speed control is achieved in inverter driven induction motor by means of variable ...obtain ...
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Intelligent Control for the Variable-Speed Variable-Pitch Wind Energy System
... generator speed, genera- tor torque with the compensation control methods to the step change in wind speed are ...wind speed, the output responses can obtain the optimal values before 50-second and ...
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