dc motor speed control using avr microcontrollerpwm technique
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 ... Experiments Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 23 2. Physical System A DC motor converts direct-current (DC) electrical energy into rotational...
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
... 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 ... 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 ... reported to control of BLDC motor using six-switch three-phase inverter (SSTPI). Direct torque control (DTC) scheme was first proposed by Takahashi [1] and Depenbrock [2] for induction motor drives...
Ngày tải lên: 03/01/2014, 19:45
Direct torque and indirect flux control of brushless DC motor
... maximum-efficiency control of BLDC motor, ” IEEE Trans. Ind. Electron., vol. 47, no. 1, pp. 109–114, Feb. 2000. [22] L. Hao and H. A. Toliyat, “BLDC motor full -speed operation using hybrid sliding ... 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 ... bill.alexander@idealpowerconverters.com Abstract—This paper presents a direct torque control (DTC) technique for brushless dc (BLDC) motors with non- sinusoidal back-EMF using four-switch inverter in the constant torque region. ... 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
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
Using while- reading techniques to improve reading comprehension for the 11th form students at phan dang luu high school
... of using these exercises. Teachers apparently often used some common type of exercises in their reading lessons: Questions and answer, True/False questions and Multiple- choice questions. Using ... in daily communication. Recognizing the importance of reading, I decide on choosing Using While- Reading Techniques to Improve Reading Comprehension for the 11 th Form Students at Phan Dang ... next chapter will suggest some while- reading techniques for teaching comprehension for the 11 th form students. 31 CHAPTER 3 SOME SUGGESTED TECHNIQUES USED IN THE WHILE- READING STAGE TO...
Ngày tải lên: 07/11/2012, 15:01
Using While- Reading Techniques to Improve Reading Comprehension for the 11th Form Students at Phan Dang Luu High School
... complete the summary. 3.2 Reading for specific information 3.2.1 Technique: Scanning After the students compete some exercises focusing on the main point or general understanding of the text, ... useful techniques to develop the reading comprehension skills in the while- reading stage for the 11 th form in Phan Dang Luu high school. 3. Scope of the study Due to the limitation, all the techniques ... are based on reading texts in “English” textbook. 3.1 Reading for general understanding. 3.1.1 Technique: Skimming After teaching new vocabulary or introducing the text, etc. the teacher asks...
Ngày tải lên: 17/04/2013, 16:09
Bộ điều khiển số PID điều khiển DC motor
... 16, 32 (AVR loại 8 bit, 16 bit, 32 bit): Là loại AVR tốc độ cao, tích hợp sẵn ADC 10 bit. - AVR tích hợp sẵn LCD driver : Atmega169, 329. - AVR có tích hợp SC (power stage controller): ... Thị Hồng Nhung 10 Hình 4.2: Sơ đồ khối điều khiển trung tâm Tổng quan về AVR và Atmega16 +Vi điều khiển AVR Vi điều khiển AVR (Atmel Norway Design) thuộc họ vi điều khiển Atmel, nó là họ vi điều ... sáng nên còn gọi là lighting AVR. - Attiny11, 12, 15: AVR loại nhỏ. + Các tính năng của Atmega16 : - Hiệu xuất cao ( high performance ), là loại vi điều khiển AVR 8 bit công suất thấp - Cấu...
Ngày tải lên: 23/04/2013, 14:48
Tài liệu tiếng anh Điện tử công suất mạch MERS Series connected power flow control using magnetic energy recovery switch
Ngày tải lên: 15/10/2013, 16:12
CUSTOMER SATISFACTION USING DATA MINING TECHNIQUES
... criteria. Prediction level is quite satisfactory resulting that data mining techniques can be successfully combined with multiple criteria methods. Using other customer characteristics, such as age, marital status, ... Data Set Complete? Yes No Selection of complete questionnaires CUSTOMER SATISFACTION USING DATA MINING TECHNIQUES Nikolaos F. Matsatsinis, E. Ioannidou, E. Grigoroudis Technical University of ... http://www.attar.com/tutor/mining.htm. [2] Berry, J. A. Michael; Linoff, Gordon, 1997, ‘Data Mining Techniques: For Marketing, Sales, and Customer Support’, John Wiley & Sons, Inc., Canada. [3]...
Ngày tải lên: 22/10/2013, 09:15
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