dc motor speed control techniques
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... 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 • ... root-locus domain. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 24 Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System 1. Introduction This ... Craig DC Motor / Tachometer Closed-Loop Speed Control System 11 The DC motor/ tachometer system has a single input and a single output. The input is the voltage applied across the two motor...
Ngày tải lên: 25/01/2014, 13:20
Tài liệu Speed Control of DC Manchines pptx
... B r e r v r B r I r F r B r v r e r B r I r F r Đặc tính cơ của động cơ DC kích từ nối tiếp Example 4: Example 5: Đặc tính cơ 4 phần tư ...
Ngày tải lên: 17/12/2013, 14:15
Direct torque control of brushless DC motor with non sinusoidal back EMF
Ngày tải lên: 03/01/2014, 19:44
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 and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor
... conduction DTC of BLDC motor drive with six-switch inverter scheme. Keywords: Brushless dc (BLDC) motor, sliding mode observer, direct torque control (DTC), stator flux control, fast torque ... 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 ... equation (6) eliminates the speed term in the denominator which causes problem at zero and near zero speeds. 2.3 Control of Stator Flux Linkage Amplitude Since BLDC motor does not have sinusoidal...
Ngày tải lên: 03/01/2014, 19:45
Direct torque and indirect flux control of brushless DC motor
... force (EMF), position-sensorless control, stator flux control, torque pulsation. I. I NTRODUCTION T HE permanent-magnet synchronous motor (PMSM) and brushless dc (BLDC) motor drives are used extensively ... INDIRECT FLUX CONTROL OF BRUSHLESS DC MOTOR 355 TAB L E I S WITCHING T ABLE FOR DTC OF BLDC M OTOR U SING T HREE - PHASE C ONDUCTION indirectly kept at its optimum level, while the motor speed is less ... 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...
Ngày tải lên: 03/01/2014, 19:46
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 ... sampling time, dc- link voltage, hysteresis bandwidth, motor parameters especially the winding inductance, motor speed, snubber circuit, and the amount of load torque The best way to control the ... I. I NTRODUCTION Brushless dc motors have been used in variable speed drives for many years due to their high efficiency, high power factor, high torque, simple control, and lower maintenance...
Ngày tải lên: 03/01/2014, 19:46
Pseudo vector control – an alternative approach for brushless DC motor drives
... motor that is fed by square-wave current and it is often called Brushless DC Motor (BLDCM). The main difference between two kinds of motors from the control viewpoint resides on current control ... conventional control system for BLDC motor (Fig. 2). The motor is fed by a PWM-controlled MOSFET inverter. As we can see in Figs. 2 and 3, the currents are controlled by 3 current controllers ... machine, Vector control, Pseudo-vector control, Torque ripple minimization. I. I NTRODUCTION A. Sine-wave PM Motor vs. Square-wave Motor: Vector Control vs. Phase Current Control With the...
Ngày tải lên: 03/01/2014, 19:46
Bộ điều khiển số PID điều khiển DC motor
... CAP-P7 1000 7805 IN 1 OUT 3 G N D 2 U4 7805 GND CAP-P6 10U CAP4 104 VCC R6 330R LED1 LED T1 TIP42 R5 10R 2 1 3 4 P O W E R 1 CONN-SIL4 Control 1 Control 2 Hình 4.6 Sơ đồ nguyên lý mạch nguồn 5V Khối này là mạch điện dùng để ổn áp điện thế ... thay vì nhập xuất dữ liệu. - Chân 30 : AVCC cấp điện áp so sánh cho bộ ADC. - Chân 32 : AREF điện áp so sánh tín hiệu vào ADC. - Chân 33 đến 40 : Cổng vào ra dữ liệu song song A ( PORTA ) ngoài ... tín hiệu số ADC ( analog to digital converter) b. Vào ra của vi điều khiển PORTA ( PA7 … PA0 ) : là các chân số 33 đến 40. Là cổng vào ra song song 8 bít khi không dùng ở chế độ ADC. Bên trong...
Ngày tải lên: 23/04/2013, 14:48
At Speed Debugging Techniques
... CHAPTER 18 At Speed Debugging Techniques Throughout the book so far we have discussed a number of techniques for implementing VHDL designs and ways to make ... behave as expected. These techniques include simulation, synthesis of the design to an FPGA or ASIC, and gate-level simulation using VITAL libraries. A new technique called At -Speed Debugging is just ... Data Displayed as Waveforms. Figure 18-12 Watchpoint Specification Dialog Box. 411 At Speed Debugging Techniques true, the IICE will trigger, indicating that the instruction register is be- ing...
Ngày tải lên: 29/09/2013, 18:20
The Control Techniques Drives and Controls Handbook
... torque control 113 3 D.C. motor drive control 114 Flux controller 114 Torque controller 115 Performance and applications 116 4 Analysis of and set up of a speed controller 116 Ideal speed controller ... happens as speed is increased? 124 Medium -speed operation 124 How is performance maintained as speed increases? 125 High -speed operation 125 Summary of typical/practical control 126 Control of speed ... a real speed controller 119 5 Switched-reluctance and stepper -motor drives 121 1 General 121 2 Switched-reluctance motors and controllers 122 Basic principle of the switched-reluctance motor 122 Operation...
Ngày tải lên: 20/10/2013, 02:15
DC Motor - Content
... cổng. VD3: Sử dụng thanh ghi CC 80C537, có thể đạt 5kHz. DC Motor - PWM illustration By Lê Anh Tuấn 12/2002 DC Motor - Brushless DC Động cơ một chiều không chổi than không được cấp liên tục ... 12/2002 DC Motor - Practical1 VI MẠCH 555/556 Tạo ra các xung đều nhau, tần số CRR f BA )( 49.1 + = Tạo ra xung có bề rộng ΔT khi có xung vào chân trigger ΔT=1.1RC By Lê Anh Tuấn 12/2002 DC Motor ... 12/2002 DC Motor - Practical2 PWM SỬ DỤNG IC 555 Mạch dùng điều khiển động cơ 6V, 0.5 A với đầu vào Vin=9V U1: tạo nhịp, chính là tần số làm việc U2: Chu kỳ làm việc By Lê Anh Tuấn 12/2002 DC Motor...
Ngày tải lên: 28/10/2013, 05:15
Tài liệu Brushed DC Motor Fundamentals doc
... drawback to SWDC motors is that they do not have precise speed control like PMDC and SHWDC motors have. FIGURE 4: SERIES-WOUND DC MOTORS Armature Brush Permanent Magnet Poles DC Voltage Supply Armature Brush Shunt Field DC Voltage Supply Armature Brush Series Field DC Voltage Supply ... the different types of BDC motors and the advantages/ disadvantages of each. Permanent Magnet Permanent Magnet Brushed DC (PMDC) motors are the most common BDC motors found in the world. These motors use ... generally more robust than PMDC motors. FIGURE 3: SHUNT-WOUND DC MOTORS Series-Wound Series-wound Brushed DC (SWDC) motors have the field coil in series with the armature. These motors are ideally suited...
Ngày tải lên: 22/12/2013, 14:15
Comparison of current control techniques for active filter application
... the lin- ear current control, the digital deadbeat control, and the hysteresis control. In principle, analog control techniques have the fastest speed of response, not being delayed by any A/D conversion ... current i S spectrum. niques for active filter applications. All the techniques, hys- teresis control, deadbeat control, and linear rotating frame control were considered, including the latest improvements brought ... in the control techniques result in rather satisfactory performance levels for all three controllers. How- ever, the results of the comparison show a certain superiority of the hysteresis control. ...
Ngày tải lên: 03/01/2014, 19:45
Current control techniques for three phase voltage source PWM converters a survey
... Block scheme of FL controller, (b) control surface of con- ventional PI controller, (c) control surface of FL controller; comparison of current-tracking performance with PI and FL controller: (d) ... Optimal (mode) discrete modulation controller for RDCL converter. (b) NN discrete modulation controller for RDCL converter. performance of such an off-line trained NN controller depends upon the amount ... field-oriented controlled induction motor drive,” IEEE Trans. Ind. Applicat., vol. 30, pp. 1247–1253, Sept./Oct. 1994. [28] , “Novel current regulation for a field-oriented controlled induc- tion motor...
Ngày tải lên: 03/01/2014, 19:45
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