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low-speed drive system

A Low Harmonic Drive System using ZSI for a Variable Speed Wind Turbine

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 ...

6

An Improved Performance of Sensorless PMSM Drive Control with Sliding Mode Observer in Low Speed Operation

An Improved Performance of Sensorless PMSM Drive Control with Sliding Mode Observer in Low Speed Operation

... The methodology used in this paper is based on mathematical model of PMSM in stationary reference frame for constructing an observer for states estimation. The observer is chosen to be of type “Sliding Mode” for having ...

7

Dynamic Simulation of Variable-Speed Valve-Controlled-Motor Drive System with a Power-Assisted Device

Dynamic Simulation of Variable-Speed Valve-Controlled-Motor Drive System with a Power-Assisted Device

... electrohydraulic drive uses a variable-speed electric-motor to drive a hydraulic fixed displacement pump, by adjusting the electric- motor speed to regulate the hydraulic pump output flow rate ...

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A system level comparison of drive topologies for high speed electrical machines

A system level comparison of drive topologies for high speed electrical machines

... high speed applications: induction motors (IM), switched reluctance (SR) and surface mounted permanent magnet synchronous machines ...the low power factor and efficiency constitute their main ...containment ...

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Fuzzy Based Speed Control of Srm Drive for Pv Integrated Ev System

Fuzzy Based Speed Control of Srm Drive for Pv Integrated Ev System

... on low-cost PV powered Electrical Vehicles, a control system is evaluated here for a specific configuration, based on PV panels that power a Switched Reluctance Motor, using independent controllers for ...

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Speed-Control of Energy Regulation Based Variable-Speed Electrohydraulic Drive

Speed-Control of Energy Regulation Based Variable-Speed Electrohydraulic Drive

... frequency) drive system to create a compound drive, in which the frequency converter adjusts the speed of the electric motor to satisfy the actuator’s flow requirement and the flow valve ...

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Multi-Objective Control of Utility-scale
Variable-Speed Wind Turbines for Drive-train Load
Reduction in Low Wind Speed Regime

Multi-Objective Control of Utility-scale Variable-Speed Wind Turbines for Drive-train Load Reduction in Low Wind Speed Regime

... the Low Speed Shaft (LSS) and High Speed Shaft (HSS), absolute position encoders give information on pitch, yaw, LSS, and HSS positions, and strain gauges are installed in blade roots and ...In ...

12

Design and performance Analysis of a 5 Speed Manual Transmission System for Indian Drive Cycle

Design and performance Analysis of a 5 Speed Manual Transmission System for Indian Drive Cycle

... transmission system in the vehicle has few disadvantages and it can be improved by adopting various methods and also it can be improved if the number of gear ratios and their stepping are wisely ...and low ...

5

PROPORTIONAL INTEGRAL &DERIVATIVE CONTROLLER FOR BLDC MOTOR

PROPORTIONAL INTEGRAL &DERIVATIVE CONTROLLER FOR BLDC MOTOR

... in speed control of BLDC machine. In controlling the speed of BLDC motor the system is closed-loop where actual speed is the feedback parameter that is obtained from the speed ...a ...

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Design of Control System of Low Speed Brushless DC Motor

Design of Control System of Low Speed Brushless DC Motor

... the drive motor to provide high torque, slow speed and smooth ...the low speed brushless dc motor can realize the direct drive of the pumping unit, which simplifies the transmission ...

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INFLUENCE OF LOW DELIVERY PRESSURE OF AIR COMPRESSOR ON MOTOR SPEED USING VARIABLE SPEED DRIVE

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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Sensorless Control of Induction Motor Drives at Low Speed Using Fuzzy Logic Control

Sensorless Control of Induction Motor Drives at Low Speed Using Fuzzy Logic Control

... the speed or the ...performance drive system must have good dynamic speed command tracking and load regulating responses, and the performances are insensitive to the drive and load ...

6

Energy Saving Mechanism Using Variable Frequency Drives

Energy Saving Mechanism Using Variable Frequency Drives

... constant speed with 50-Hz power supply and then control the flow by means of a ...the speed. This change gives a large power reduction compared to fixed-speed operation for a relatively small ...

7

Speed Control of BLDC Motor Drive for Various Applications

Speed Control of BLDC Motor Drive for Various Applications

... The advancement in technology of power electronic along with the high-speed processor, self-commutating electronic devices and latest software helps to model, realize and analyze such control strategies. These ...

6

UAS in the NAS Flight Test Series 3

UAS in the NAS Flight Test Series 3

... • Pairwise, low speed−low speed encounters that requires Ikhana ownship versus a low speed intruder aircraft (C90 or T-34C) [Configuration 1A];. • Pairwise, low speed−high speed encoun[r] ...

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Speed Control of Photovoltaic Pumping System Employing PMSM Drive

Speed Control of Photovoltaic Pumping System Employing PMSM Drive

... Fig.1 shows the comprehensive control scheme for a speed controlerof solar PV based PMSM drive. The control scheme is discussed in two parts, i.e. control of boost converter to maintain constant DC link ...

10

Wireless Industrial Machine Speed Control using GSM

Wireless Industrial Machine Speed Control using GSM

... restored to its original industrial form by removing the SMS PDU head. This is also conducted by the gateway of the monitoring system. If needed, the message content can be put into Gateway. In this project we are ...

5

Intelligent HEV Fuzzy Logic Control Strategy Based on Identification and Prediction of Drive Cycle and Driving Trend

Intelligent HEV Fuzzy Logic Control Strategy Based on Identification and Prediction of Drive Cycle and Driving Trend

... of drive cycles and another neural network NNET_DT for the prediction of driving ...predicted drive cycles and the predicted driving trends is more intelligent and more ...the drive cycle NEDC show ...

12

The design and analysis of a rotary motion electrostatic actuator

The design and analysis of a rotary motion electrostatic actuator

... In Table 2.3, electrostatic actuator and others actuator are compared from several aspects: maximum deflection, maximum force, speed of actuation and efficiency. The result shows that electrostatic actuator has ...

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A Modular Drive System for Neutron Choppers with Digital Speed and Phase Control  EUR 4881

A Modular Drive System for Neutron Choppers with Digital Speed and Phase Control EUR 4881

... A digital quartz reference generator provides the control signals for speed of the master chopper and serves as a pilot time base for all other systems.. Phasing between different choppe[r] ...

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