dc motor speed control circuit with scr
New control strategy for variable speed wind turbine with DC DC converters
... electSpeed Duty ratio VSWT Aero dynamical / Mechanical unit MPPT LPPT Operator Controller speed d Control strategy VSWT Control unit VSWT Electrical unit Fig. 1. Control concept of VSWT with ... [3]. Combined with appropriate control strategy, the advantages of this particular DC- DC converter can ensure the VSWT with more flexibility and operation time. The proposed new control strategy ... PWM i* i edu Fig. 5. DC- DC converter controller. III. N EW P OWER C ONTROL S TRATEGY In order to extract the maximum power available at various wind speeds, two different control algorithms...
Ngày tải lên: 03/01/2014, 19:15
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
... 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 ... Indirect Flux Control of Brushless DC Motor with Non-sinusoidal Back-EMF without position sensor Abstract: In this paper, the position sensorless direct torque and indirect flux control ... 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...
Ngày tải lên: 03/01/2014, 19:45
Direct torque control of four switch brushless DC motor with non sinusoidal back EMF
... accordance with the simulation result obtained in Fig. 8. Since only the torque is controlled without speed control, the time range of control system under transient state is selected short. The motor ... 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 ... various cases with and without stator flux control, switch states 1 and 2, respectively in order to demonstrate the validity of the proposed four-switch DTC of a BLDC motor drive scheme with two-phase...
Ngày tải lên: 03/01/2014, 19:46
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 ã ... 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 ... Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 21 Table 1. Specifications of the Honeywell 22VM51-020-5 DC Motor with Tachometer Motor Characteristics Units...
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
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
... 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 ... 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 ... machines with nonsinusoidal back EMF (BLDC, etc.). It is shown in [28] that only electromagnetic torque in the DTC of BLDC motor drive under two-phase conduction mode can be controlled. Flux control...
Ngày tải lên: 03/01/2014, 19:46
Pseudo vector control – an alternative approach for brushless DC motor drives
... 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 recent ... 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 ... called PM synchronous motor (PMSM), is fed by sine-wave current supply; ã Square-wave PM motor that is fed by square-wave current and it is often called Brushless DC Motor (BLDCM). The main difference...
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
bài giảng-vhdl - Very High speed integrated circuit Description Language
Ngày tải lên: 12/09/2013, 22:38
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
... issue in SHWDC motors so they are 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 ... electric motor types (i.e., brushless DC, AC induction), BDC motors do not require a controller to switch current in the motor windings. Instead, the commutation of the windings of a BDC motor is ... 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...
Ngày tải lên: 22/12/2013, 14:15
Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
... Overview of Gas Springs 2 . 21369 . 2007 . 1 Speed Control TM ô SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM ô are designed to reduce or eliminate the ... springs with SPC gas springs Option 2 – corner solution (see below) SPC 2480.12./13. or 2484.12./13. LCF SPC Braking distance (~ 30 mm) *At room temperature with free airow Speed Control TM ô ... unit of time stroke in mm time in s sheet metal retainer without SPC sheet metal retainer with SPC SPC reduces speed to 0.4 m/s press speed 1.0 m/s Strokes per minute, depending on stroke travel,...
Ngày tải lên: 22/01/2014, 02:20
Tài liệu An Introduction to Intelligent and Autonomous Control-Chapter1:Introduction to Intelligent Control Systems with High Degrees of Autonomy pdf
Ngày tải lên: 26/01/2014, 07:20