Trapezoidal control of BLDC motors using hall effect sensors

POWER ELECTRONIC CONTROL OF INDUCTION MOTORS ppt

POWER ELECTRONIC CONTROL OF INDUCTION MOTORS ppt
... the required rms value of the fundamental harmonic of the output phase to neutral voltage of the AC-AC voltage controller Induction machine Fig 6.5: Speed control of an induction machine by stator ... power supply source for V/f control of induction motors The second one, current source inverter (CSI), is beyond the scope of interest here Principle of operation of a threephase VSI is explained ... prevailing one in closed-loop control of induction motors fed from PWM inverters Explanation of this method however requires at first the introduction of the notion of the space vector Let us at...
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Báo cáo khoa học: "Biological Control of Sheep Parasites using Duddingtonia" pdf

Báo cáo khoa học:
... weight of 80 kg, each receiving 250,000 D flagrans spores / Biological control of sheep parasites kg body weight/day When the lambs were approximately weeks of age (early June), the dose rate of spores ... BL, Rydzik A, Yeates GW: Evaluation of biological control of sheep parasites using Duddingtonia flagrans under commercial farming conditions on the island of Gotland, Sweden Vet Parasitol 2004, ... July* + ( ) number of ewes with positive faecal egg counts * Ewes and lambs moved off pasture Acta vet scand vol 47 no 1, 2006 85 (6/10) 60 (4/10) Biological control of sheep parasites 27 Table...
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force motion control of constrained robots using sliding mode

force motion control of constrained robots using sliding mode
... “Comments on force/ motion control ofconstrained robots using sliding mode, ”IEEE Trans Automat Contr.,vol 39, p 179, Jan 1994 [2] N H McClamroch and D Wang, “Feedback stabilization and tracking of constrained ... Q J Zhou, Force/ motion control of constrained robots using sliding mode, ” IEEE Trans Automat Cont., vol 37, no 5, May 1992, pp 668-672 [2] J J E Slotine and W Li, Applied Nonlinear Control Englewood ... Sinha, and M A Elbestawi, “On adaptive force/ motion control of constrained robots, ” in Proc ZECON’89, 1989, p 433 [4] X Yun, “Dynamic state feedback control of constrained robot manipulator,’’ in...
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fault diagnosis of induction motors using signal processing based methods and optimal feature selection

fault diagnosis of induction motors using signal processing based methods and optimal feature selection
... 진단 Fault Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection 지도교수 이홍희 이 논문을공학박사학위 논문으로 제출함 2008 년 12 월 울산대학교 대학원 전기전자정보시스템공학부 웬옥투 Fault Diagnosis of ... Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection Ngoc-Tu Nguyen A thesis submitted to the School of Electrical Engineering in fulfillment of the thesis ... faults, signal based processing methods for monitoring the condition of induction motor, the optimal feature selection using distance based criterion is considered to remove the irrelevant and redundant...
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Proceedings VCM 2012 25 discrete time optimal tracking control of BLDC motor

Proceedings VCM 2012 25 discrete time optimal tracking control of BLDC motor
... a discrete time optimal tracking control system for BLDC motor based on a fullorder observer has been applied and investigated to control position of BLDC motor Performance of the optimal tracking ... simulation results of the observer are shown in Figs 3~5 And the simulation results of the designed discrete time optimal tracking controller of BLDC motor designed based on the discrete time full-order ... output of the designed observer converge to those of system after about 0.01 second Fig shows that discrete time optimal tracking controller of the BLDC motor designed based on the discrete time...
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Identification and control of nonlinear systems using multiple models

Identification and control of nonlinear systems using multiple models
... think of our approach as the control of nonlinear systems using piecewise affine models , which is a special case of control of nonlinear systems using multiple models 1.3 Identification of nonlinear ... 1.2 Control of nonlinear systems using multiple models and piecewise affine models Another simpler way to control a nonlinear system over a large operating region is by utilizing the “divide and ... Identification of Switched Linear Systems using Multiple Models 119 5.5.3 5.6 Design of One-Step-Ahead Controllers for Switched Linear System 117 Identification of Switched Nonlinear Systems using Multiple...
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AN1017 sinusoidal control of PMSM motors with dsPIC30F DSC

AN1017   sinusoidal control of PMSM motors with dsPIC30F DSC
... phase with rotor position Synchronize sine-wave phase with rotor position SINUSOIDAL CONTROL OF PMSM MOTORS WITH DSPIC30F DSC © 2005 Microchip Technology Inc FIGURE 8: SINUSOIDAL CONTROL OF PMSM MOTORS ... Microchip Technology Inc SINUSOIDAL CONTROL OF PMSM MOTORS WITH DSPIC30F DSC IMPLEMENTATION OF SINUSOIDAL VOLTAGE CONTROL control loop only controls Amplitude The value of Phase from the Phase ... DS01017A-page 15 SINUSOIDAL CONTROL OF PMSM MOTORS WITH DSPIC30F DSC CONCLUSION The dsPIC30F2 010 provides an ideal low-cost solution for controlling a PMSM motor with sinusoidal voltages Motor control...
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Fault diagnosis of induction motors using signal processing based methods and optimal feature selection

Fault diagnosis of induction motors using signal processing based methods and optimal feature selection
... 진단 Fault Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection 지도교수 이홍희 이 논문을공학박사학위 논문으로 제출함 2008 년 12 월 울산대학교 대학원 전기전자정보시스템공학부 웬옥투 Fault Diagnosis of ... Diagnosis of Induction Motors using Signal Processing based Methods and Optimal Feature Selection Ngoc-Tu Nguyen A thesis submitted to the School of Electrical Engineering in fulfillment of the thesis ... Objective and contribution 1.4 The structure of the thesis Understanding the Basis of Induction Motor Faults 2.1 Bearing Damage 9 2.2 Electrical Induced Faults 12 2.3 Others 16 Methods for Fault Diagnosis...
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AN0889 VF control of 3 phase induction motors using PIC16F7X7 microcontrollers

AN0889   VF control of 3 phase induction motors using PIC16F7X7 microcontrollers
... PWM2 PWM3 2 Run/Stop PIC16F7X7 Optoisolators SD HIN1 HIN2 HIN3 HOut1 IGBTH1 HOut2 IGBTH2 HOut3 IGBTH3 LOut1 IGBTL1 LOut2 IGBTL2 IGBT Drivers LOut3 3- Phase Induction Motor 3- Phase IGBTL3 Inverter ... development of their own applications VF control provides a simple and cost efficient method for open-loop speed control of 3- phase induction motors A low-cost VF solution can be implemented using the PIC16F7X7 ... (capacitors C41/42/ 43 and resistors R81/82/ 83/ 84/91/92/ 93/ 96) • Make all grounds common by shorting P_GND to D_GND VF CONTROL FIRMWARE While the PIC16F7X7 microcontroller makes 3- phase motor control possible,...
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DC bus control of variable speed wind turbine using a buck boost converter

DC bus control of variable speed wind turbine using a buck boost converter
... Hydro-Québec, Natural Resources Canada and the Natural Sciences and Engineering Research Council of Canada VII [1] REFERENCES C.L Kana; M Thamodharan and A Wolf; “System management of a wind- energy converter , ... a buck boost converter inserted between the rectifier output and the DC bus The control relationship between generator speed and the DC bus voltage is used to change the apparent DC bus voltage ... tip -speed ratio Fig.3 : Connection diode rectifier circuits to the generator Unlike constant -speed control, a variable- speed control can adjust the speed of the turbine as the wind speed changes,...
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ĐIỀU KHIỂN TỪ XA CÁC THIẾT BỊ ĐIỆN QUA TIN NHẮN ĐIỆN THỌAI REMOTE CONTROL OF CIVIL ELECTRICAL DEVICES USING SMS docx

ĐIỀU KHIỂN TỪ XA CÁC THIẾT BỊ ĐIỆN QUA TIN NHẮN ĐIỆN THỌAI REMOTE CONTROL OF CIVIL ELECTRICAL DEVICES USING SMS docx
... điện thoại hãng Nokia Thiết kế phần cứng, phần mềm hệ thống điều khiển thiết bị điện nhà Hệ Thống điều khiển thiết bị điện nhà qua tin nhắn SMS phân thành khối (Hình 4) + Khối nhận tin nhắn SMS ... với thiết bị điều khiển lắp đặt Siemen cách đồng Tuy nhiên, thường sử dụng cho ứng dụng công nghiệp giá thành cao [8] Hệ thống điều khiển thiết bị qua tin nhắn Hệ thống điều khiển thiết bị qua tin ... lệnh điều khiển cho khối điều khiển thiết bị, trình diễn thông tin trạng thái thiết bị lên giao diện đưa lệnh tương tác với tin nhắn lệnh gọi thoại cho modem + Khối điều khiển thiết bị (Vi điều khiển) :...
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Báo cáo hóa học: " Temperature-Dependent Site Control of InAs/GaAs (001) Quantum Dots Using a Scanning Tunneling " pptx

Báo cáo hóa học:
... migrating on the WL, favored to congregate At 240°C, site- controlled InAs nano dots were fabricated At 430°C, InAs nano dots were also fabricated However, these dots were remained at least 40 s and ... Fabrication process of a nano-dot growth under As4 irradiation a applying voltage, b Ga-rich site fabrication, c congregating In atoms in this site, and d exceeding critical thickness partially, ... increase crystal quality of nano structure, we tried to fabricate at 430°C under As4 irradiation After the InAs WL growth at 500°C, a substrate temperature has decreased to 430°C under As4 irradiation...
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Báo cáo hóa học: " In situ Control of Si/Ge Growth on Stripe-Patterned Substrates Using Reflection High-Energy Electron " potx

Báo cáo hóa học:
... formed on any other surface location Conclusion In this work, in situ RHEED monitoring of Si and Ge growth on stripe-patterned Si substrates was demonstrated as a sensitive tool for controlling ... Continuation of buffer growth, results in the appearance of faint additional diffraction streaks inclined by 25° to the surface normal, as indicated by the dashed lines in the RHEED pattern of ... nucleation process Therefore, the whole process sequence must be tightly controlled for reproducible position control of the quantum dots In the present work, we report on in situ control of Si...
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Báo cáo y học: " Control of disseminated intravascular coagulation in Klippel-Trenaunay-Weber syndrome using enoxaparin and recombinant activated factor VIIa: a case report" pptx

Báo cáo y học:
... Beier et al.: Control of disseminated intravascular coagulation in Klippel-Trenaunay-Weber syndrome using enoxaparin and recombinant activated factor VIIa: a case report Journal of Medical Case Reports ... laceration The interval of aminocarpoic acid administration is indicated by the dark grey bars The initiation (arrow #2) and duration of administration of recombinant activated factor VII is indicated ... tomography; DIC: disseminated intravascular coagulation; KMS: Kasabach-Merritt syndrome; KTWS: Klippel-Trenaunay-Weber syndrome; LMWH: low-molecular-weight heparin; rFVIIa: recombinant activated factor...
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Wireless control of bluetooth on off switches in a smart home using J2ME in mobile phones and PDAs

Wireless control of bluetooth on off switches in a smart home using J2ME in mobile phones and PDAs
... signal and executes [3] [2] Emulation was done with two MIDlets (JAVA programs in mobiles /PDAs) one a server and the other one a client The server was set as a manufactured Bluetooth on/ off switch ... there isn’t a Bluetooth on/ off switch in the market, a smart home infrastructure could be implemented easier with this kind of system Installation and implementation to an already existing home would ... sends a signal to a certain device and changes its status First a selection is done of what type of device is going to be turned on/ off, and then a task is chosen, either a simple on/ off or a programmed...
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