Ngày tải lên: 15/10/2013, 16:10
Direct torque control of brushless DC motor with non sinusoidal back EMF
Ngày tải lên: 03/01/2014, 19:44
Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
... efficiency control strategies of an induction motor, ” IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820–827, Sep./Oct. 1986. [2] M. Depenbrock, “Direct self -control of inverter-fed induction machine,” ... 2.1 Principles of the Proposed Method 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 ... and effectiveness of the sensorless three-phase conduction DTC of a BLDC motor drive with six-switch inverter. 2. The Proposed Sensorless DTC of Four-Switch BLDC Motor Drive Using Three-Phase...
Ngày tải lên: 03/01/2014, 19:45
Direct torque and indirect flux control of brushless DC motor
... programming-based control of brushless motors,” IEEE Trans. Control Syst. Technol., vol. 11, no. 1, pp. 139–146, Jan. 2003. [19] S. J. Kang and S. K. Sul, “Direct torque control of brushless dc motor with nonideal ... high-efficiency control strategies of an induction motor, ” IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820–827, Sep./Oct. 1986. [25] M. Depenbrock, “Direct self -control of inverter-fed induction machine,” IEEE ... Overall block diagram of the position-sensorless direct torque and indirect flux control (DTIFC) of BLDC motor drive using three-phase conduction mode. Fig. 4. Simulated indirectly controlled stator...
Ngày tải lên: 03/01/2014, 19:46
ĐIỀU KHIỂN TỪ XA CÁC THIẾT BỊ ĐIỆN QUA TIN NHẮN ĐIỆN THỌAI REMOTE CONTROL OF CIVIL ELECTRICAL DEVICES USING SMS docx
... đại để đóng mở cho Role 12V qua IC UNL2003A. Để phản hồi trạng thái on/off của thiết bị, trong nghiên cứu này tác gỉa sử dụng tiếp điểm đầu ra của Rơle để tạo tín hiệu ... ra khả trình, có rất nhiều dòng PIC với hàng loạt các mô-đun ngoại vi tích hợp sẵn (như USART, PWM, ADC ), với bộ nhớ chương trình từ 512 Word đến 32K Word. PIC16F877A là dòng PIC phổ biến nhất, ... độ tiết kiệm năng lượng (Sleep Mode) với nguồn xung clock ngoài; + 2 bộ CCP, Capture/Compare /PWM - tạm gọi là: Bắt giữ / So sánh / Điều biến xung; + 1 cổng song song (Parallel Port) 8 bit...
Ngày tải lên: 29/03/2014, 15:20
Hysteresis Voltage Control of DVR Based on Unipolar PWM 95 With comparison of the obtained results docx
Ngày tải lên: 09/08/2014, 16:21
Báo cáo lâm nghiệp: "Detection of cavitation events upon freezing and of water in stems using ultrasound technique" pdf
Ngày tải lên: 09/08/2014, 04:20
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... a control strategy that varies the frequency and voltage of the signal applied to the windings of the induction motor, while controlling the flux created in the air-gap of the induction motor. ... outputs of an induction motor, we can use this motor controller to control an induction machine. ã TMS320F243 DSP controller. This is manufactured by the Texas Instruments Company and is one of ... the induction motor s many advantages are clearly explained. Wildi also presents the two types of induction motors: “the squirrel cage induction motor and the “wound motor . An explanation of...
Ngày tải lên: 27/10/2013, 23:15
SINUSOIDAL PWM OPERATION OF AN AC INDUCTION MOTOR CONTROLLER
Ngày tải lên: 17/12/2013, 18:06
DC bus control of variable speed wind turbine using a buck boost converter
... Search rules of the various cases of operation are summarized in the table I. Fi g.4. Operation modes of buck boost converter 2 Unlike constant -speed control, a variable -speed control can ... Fig.5. Probable displacement of the operating point between the operating power and the maximum power, in the event of change of the wind speed, the control of the buck- boost converter ... control can adjust the speed of the turbine as the wind speed changes, so as to operate at the peak of the Cp curve. This will maximize the power generated for a particular wind speed, as it shown...
Ngày tải lên: 03/01/2014, 19:15
Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
... Network Toolbox. The performance of an open-loop volts/Hz speed- controlled induction motor drive has been evaluated with the ANN-based modulator and compared with that of a conventional DSP-based ... (1985), and a number of prize paper awards. MONDAL et al.: A NEURAL-NETWORK-BASED SPACE VECTOR PWM CONTROLLER 663 III. N EURAL -N ETWORK -B ASED S PACE -V ECTOR PWM The derivation of turn-on times ... backpropagation technique in the MATLAB-based Neural Network Toolbox [8] was used for offline training. The network was simulated with an open-loop volts/Hz-controlled induction motor drive and...
Ngày tải lên: 22/12/2013, 08:16
A park like transformation for the study and the control of a nonsinusoidal brushless DC motor
Ngày tải lên: 03/01/2014, 19:44
Direct torque control of four switch brushless DC motor with non sinusoidal back EMF
... only the torque is controlled without speed control, the time range of control system under transient state is selected short. The motor speeds up to a very large value if the motor is run longer ... effectiveness of the two-phase four-switch DTC of a BLDC motor drive in the constant torque region. II. T HE P ROPOSED FOUR - SWITCH D IRECT T ORQUE C ONTROL OF BLDC M OTOR D RIVE A. Principles of ... DTC of a BLDC motor drive using four-switch inverter with faster torque response due to the fact that the voltage space vectors are directly controlled. Therefore, the direct torque controlled...
Ngày tải lên: 03/01/2014, 19:46
Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc
... volt e sult of the c capacitor v o w =2000 Ω ) a t s of the dea e inverter c u r due to loa d g ure 5 show s o ltage of the R v =20Ω , R w y namic perf o age is quick c ontrollable o ltage of ... cas e er of PV ge n r ature and cl ition it is ne V-I charac t by the DC/ D o al of the s y h constant a m p oint of the u e to load u n a nd midpoi n s problem t h d ing to load a r region of ... mach f o c ontains the link voltage nk control i s T he control o discrete sy s Figur e t rol strategy s in [1], [2], o r three pha s current mi n control loo p s intended s i f the VSI...
Ngày tải lên: 19/01/2014, 02:20
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... rotor (armature) of the motor is available to drive an external load. DC motors are widely used in numerous control applications because of features such as high torque, speed controllability ... pulse-width-modulated (PWM) power amplifier. Motor speed is measured using an analog tachometer. Figure 2. Physical System Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control ... A schematic diagram of a DC motor is shown in Figure 6. Figure 6. Schematic Diagram of a DC Motor Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 10 ...
Ngày tải lên: 25/01/2014, 13:20
Direct control methods for matrix converter and induction motor
... loop control [1], [5]. Another topic of great interest is the closed loop control of a drive system consisting of matrix converter and induction machine. Slip control and field oriented control ... Included are the basics of Direct Torque Control, Direct Current Control and Sliding Mode Control of matrix converters. I. INTRODUCTION In recent years many research results on control methods for ... Converters in Direct Torque Control of Induction Machines,” IEEE Trans. Ind. Electron., vol. 48, pp. 1057-1064, December 2001. [10] M. Depenbrok, “Direct Self -Control (DSC) of Inverter-Fed Induction Machine”,...
Ngày tải lên: 13/05/2014, 00:55