reflexes and central motor control
Design and Implementation of a Three-Phase Induction Motor Control Scheme
Ngày tải lên :
27/10/2013, 23:15
... David Finn and was designed to control a brush-less DC motor However, by constructing a feedback loop that can detect the outputs of an induction motor, we can use this motor controller to control ... instantaneously controlling the torque and flux Field-orientated controllers require control of both magnitude and phase of the AC quantities and are, therefore, also referred to as “vector controllers” ... apply FO control in MATLAB, how to model an induction motor in MATLAB and the control design aspects of FO control 2001 Thesis Project A8 Gareth S Roberts The Hardware Design 3.1 The basic control...
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Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
Ngày tải lên :
03/01/2014, 19:45
... from the measured stator voltages Vsα and Vsβ and currents i sα and isβ , then by using (1) and (4) qand d-axis flux linkage are drived Also, by usig (4) qand d-axis current are calculated Finally, ... BLDC motor drive scheme with parameters has been shown in Table The controller sampling period is selected as 32 µs The magnitudes of the torque and flux hysteresis bands are 0.001N·m, and 0.001 ... Title Block Indirect torque control method of BLDC motor explained in [9] was extended to a direct torque and indirect flux control technique for six-switch inverter BLDC motor in [7] which is suitable...
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Direct torque and indirect flux control of brushless DC motor
Ngày tải lên :
03/01/2014, 19:46
... BLDC motor drives that is similar to the conventional DTC used for sinusoidal ac motors where both torque and flux OZTURK AND TOLIYAT: DIRECT TORQUE AND INDIRECT FLUX CONTROL OF BRUSHLESS DC MOTOR ... [Tα β ] ⎣ Xb ⎦= [Tα β ]+ [TL L ] Xca Xc OZTURK AND TOLIYAT: DIRECT TORQUE AND INDIRECT FLUX CONTROL OF BRUSHLESS DC MOTOR 353 After (3) is expanded and multiplied by the original × Park transformation ... position-sensorless direct torque and indirect flux control (DTIFC) of BLDC motor drive using three-phase conduction Fig Experimental test-bed (a) Inverter and DSP control unit (b) BLDC motor (T e m te d =...
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Air Pollution from Motor Vehicles: Standards and Technologies for Controlling Emissions docx
Ngày tải lên :
06/03/2014, 16:20
... emission standards and testing procedures, has issued 11 motor vehicle emission control standards and formulated a Management Procedure and Technical Policy to control emissions Standards for ... Chapter Emission Standards and Regulations International Standards U.S Standards U.N Economic Commission for Europe (ECE) and European Union (EU) Standards Country and Other Standards Argentina ... California Motorcycle Exhaust Emission Standards U.S Federal and California Exhaust Emission Standards for Medium-Duty Vehicles U.S Federal and California Exhaust Emission Standards for Heavy-Duty and...
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Direct control methods for matrix converter and induction motor
Ngày tải lên :
13/05/2014, 00:55
... Sliding Mode Control In [11] and [12] the design of a sliding mode controller for a matrix converter is presented This controller is able to operate with leading or lagging input power factor and shows ... of both input and output current and voltage However, only input voltage and output current are measured, so the remaining values are calculated on the basis of measured values and switch configuration ... which guarantee controllability of the converter with maximum output voltage and input power factor during minimum output voltage and input current errors The choice of the demanded switch configuration...
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Báo cáo hóa học: " Technology-assisted training of arm-hand skills in stroke: concepts on reacquisition of motor control and therapist guidelines for rehabilitation technology design" ppt
Ngày tải lên :
19/06/2014, 08:20
... Motor skill learning and retention of motor skills can be enhanced if a patient assumes control over practice conditions, e.g timing of exercise instructions and feedback [91] As reflection and ... Repetitive bilateral arm training and motor cortex activation in chronic stroke: a randomized controlled trial Jama 2004, 292(15):1853-1861 Schaechter JD: Motor rehabilitation and brain plasticity after ... tested through clinical trials, controlled clinical trials or randomized controlled clinical trials between 1997 and 2007 Click here for file [http://www.biomedcentral.com/content/supplementary/17430003-6-1-S1.pdf]...
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báo cáo hóa học: " A neural tracking and motor control approach to improve rehabilitation of upper limb movements" potx
Ngày tải lên :
19/06/2014, 10:20
... trajectory ral Controller (down) that provides and output of the NeuClose hand estimated trajectory (up)the reconstructed arm Close hand estimated trajectory (up) and output of the Neural Controller ... adaptive equipments and environmental modifications [3,4] Significant improvement is being made in understanding the cellular and molecular events of cell injury and regeneration, and the paradigm ... neuroscience methods, which led to deeper understanding of motor control and learning mechanisms, also on the basis of the recent discoveries regarding cells injury and regeneration [1] In particular, long-term...
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Báo cáo y học: " The neuropharmacology of upper airway motor control in the awake and asleep states: implications for obstructive sleep apnoea" pptx
Ngày tải lên :
12/08/2014, 18:20
... regulation and motor neurone activity Evidence for and against the involvement of these mechanisms in control of the hypoglossal motor neurones that innervate the GG muscle is presented below, and implications ... on motor neurone activity and reflex responses Identifying these neurotransmitters, which may be different between non-REM and REM sleep, and their corresponding receptors will help in understanding ... neurotransmitters in control of pharyngeal muscles and its relevance to OSA Substance P Substance P is also colocalized with 5-HT and TRH in many medullary raphé neurons and excites motor neurones...
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Kwang hee nam AC motor control and electrical vehicle applications
Ngày tải lên :
24/07/2015, 13:53
... Figure 1.9: Speed and current control block diagram for DC motor Preliminaries for Motor Control Current Control Loop Let the current proportional and integral gains be denoted by Kpc and Kic , respectively ... loop and (b) Bode plot for the open-loop PI controller Speed command + + +- - speed (a) IP controller Speed command +- + + + - speed (b) Figure 1.17: Speed control loops with (a) PI and (b) IP controllers ... controller outputs: The PI controller produces a higher current command, i∗ , than an IP controller for the step input Fig 1.18 shows the speed responses and current commands when PI and IP controllers...
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Electronic starters and variable speed drives ATV71 the motor control
Ngày tải lên :
28/12/2015, 17:07
... Summary ATV71 I The motor control laws II .Motor control menu III Protection against motor o ver v oltage IV.Specific applications Summary The motor control I ATV71 The motor control laws • • • ... 1000Hz Volts / Hertz Synchronous Motor BO Substitution ATV58 special motor mode Summary The motor control I ATV71 The motor control laws II Motor control menu • • • • • Motor nameplate, optimization ... 400V motor quadrant) Summary Voltage vector control( CTT=SVC U) ATV71 Torque curves (11kW 400V motor quadrant 0-5Hz) Summary The motor control laws ATV71 Current vector control law SVC I and...
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Power electronics and motor control SECOND EDITION W. SHEPHERD L. N.HULLEY D. T. W. LIANG
Ngày tải lên :
29/04/2016, 09:46
... A.c motor drives or d.c motor drives? 4.8 Trends in the design and application of a.c adjustable speed drives 4.8.1 Trends in motor technology and motor control 4.8.2 Trends in power switches and ... Power electronics and motor control SECOND EDITION Power electronics and motor control SECOND EDITION W SHEPHERD L N HULLEY D T W LIANG Dept of Electronic and Electrical Engineering ... inverters with induction motor load 11.3.1 Motor currents 11.3.2 Motor losses and efficiency 11.3.3 Motor torque 11.3.4 Worked examples 11.4 Problems 12 Induction motor speed control by the use of...
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Dùng các mẫu để tùy biến Look and Feel của control
Ngày tải lên :
03/10/2013, 02:20
... mà cho tất control thừa kế từ lớp ContentControl Tùy biến control dùng Control Template Mô hình xây dựng nên control Silverlight WPF cho phép bạn làm nhiều tùy biến lại nội dung bên control Về ... làm điều cách dùng cú pháp mở rộng {TemplateBinding ControlProperty} bên control template để gắn nối vào thuộc tính control Điều cho phép control template thích ứng với việc thay đổi thuộc tính ... cấp ControlTemplate mà thay hình chữ nhật với hình Ellipse TextBlock bên trong: 52 Silverlight Tutorial Chúng ta tham chiếu đến Style để dùng RoundButton mẫu cho nút bấm: Kết hợp nội dung bên Control...
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Data Binding and Silverlight List Controls
Ngày tải lên :
05/10/2013, 03:20
... ObservableCollection GetHands() { 126 CHAPTER ■ DATA BINDING AND SILVERLIGHT LIST CONTROLS ObservableCollection hands = new ObservableCollection(); hands.Add( new StartingHands() ... data to Silverlight controls Then you focused on two controls typically bound to data: the DataGrid control and the ListBox control You saw how these controls are flexible and can show data in ... }); return hands; 127 CHAPTER ■ DATA BINDING AND SILVERLIGHT LIST CONTROLS } } } Now that the class is built, in the MainPage.xaml file, change the width of the UserControl to be 500 and add a...
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Legacy Support for USB Keyboards and Mice and the Host Controller Driver
Ngày tải lên :
07/10/2013, 00:20
... startup and shutdown, the host controller driver manages the host controller through a set of Operational Registers These registers are part of the host controller and are accessed by the host controller ... assertion of reset on the USB, and then sets up the host controller Operating System Takes Control of the OHCI Host Controller Later, when the host controller driver is loaded and running, it can determine ... implementation of mouse and keyboard legacy support and describes one way to hand off control of the host controller between the BIOS and the UHCI host controller driver in the operating system The...
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Senescence and Cell Cycle Control
Ngày tải lên :
25/10/2013, 21:20
... activated Ras and the telomerase catalytic subunit (hTERT) can transform HDFs and human keratinocytes (Hahn et al 1999) T-Ag inactivates the p53- and Rb-dependent senescence-inducing pathways and hTERT ... gene (el Deiry et al 1993), and p21Cip1 protein binds to and inhibits G1-regulatory cyclin-dependent kinases (Cdk), especially Cdk2 in complex with cyclins E and A (Sherr and Roberts 1999) In addition ... Senescence and Cell Cycle Control 261 tion of this system may involve additional mutations In MEFs, disruption of Rb, p107 and p130 results in increased proliferation with a shortened G1 phase and immortalization...
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Industrial motor control
Ngày tải lên :
13/12/2013, 00:56
... of motors and the controls necessary to control and protect them and also to troubleshoot systems when they fail Installation of Motors and Control Equipment When installing electric motors and ... Chapter General Principles of Motor Control Installation of Motors and Control Equipment Types of Control Systems Functions of Motor Control Review Questions Chapter Symbols and Schematic Diagrams Push ... motor control Discuss considerations when installing motors or control equipment Discuss the basic functions of a control system Discuss surge protection for control systems The term motor control ...
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Industrial motor control
Ngày tải lên :
13/12/2013, 03:40
... of motors and the controls necessary to control and protect them and also to troubleshoot systems when they fail Installation of Motors and Control Equipment When installing electric motors and ... Chapter General Principles of Motor Control Installation of Motors and Control Equipment Types of Control Systems Functions of Motor Control Review Questions Chapter Symbols and Schematic Diagrams Push ... motor control Discuss considerations when installing motors or control equipment Discuss the basic functions of a control system Discuss surge protection for control systems The term motor control ...
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SINUSOIDAL PWM OPERATION OF AN AC INDUCTION MOTOR CONTROLLER
Ngày tải lên :
17/12/2013, 18:06
... most of those motors lack a proper motor controller in order to run the motor more efficiently Motors can run more efficiently by varying the speed of the motor to match the load Motors are rated ... issues of motor controller design Fig.1 below is a block diagram of the ac motor controller A section covering theory of ac motor controller operation, then a section on efficiency and reliability ... ac induction motor controller is presented and the PWM (pulsewidth-modulated) frequency control part of the operation is verified experimentally The application for this ac motor controller is...
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