arduino pwm ac motor speed control
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... 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 ... 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 Values...
Ngày tải lên: 25/01/2014, 13:20
Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
... . 1 Speed Control TM « SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM « are designed to reduce or eliminate the sheet metal retainer bounce back which is ... caused by the increased return travel speed in high speed presses (link drive presses). SPC Gas Springs feature an integral return travel delay which reduces the speed of the gas spring to 0.4 m/s ... a soft arrival for the sheet metal retainer. Benefits of the Speed Control TM « SPC Gas Springs, cushioned: Prevents bounce back of sheet metal retainer. Increased productivity through...
Ngày tải lên: 22/01/2014, 02:20
Tài liệu 3 Parameter Setting of Analog Speed Controllers pdf
... without lack of generality. In Fig. 3.6, the speed controlled system employing the DC motor as the torque actuator is shown. The figure includes the secondary phenomena, such as the speed- feedback ... functions. Each of the transfer functions W P , W SC , W M , – , , , , 3.2 The impact of secondary dynamics on speed- controlled DC drives 68 3 Parameter Setting of Analog Speed Controllers achieved ... ω PEAK . − 3 Parameter Setting of Analog Speed Controllers Practical speed controlled systems comprise delays in the feedback path. Their torque actuators, with intrinsic dynamics, provide...
Ngày tải lên: 27/01/2014, 15:20
Chapter 14 permanent magnet AC motor drives
... or nonsinusoidal back emf waveforms. Machines with sinusoidal back emfs may be controlled so as to achieve nearly con- stant torque; however, machines with a nonsinusoidal back emf may be less ... nominal operating speed of 200 rad/s (mechanical). 542 PERMANENT-MAGNET AC MOTOR DRIVES The structure of the control algorithms determines the type of permanent-magnet ac motor drive, of which ... structure of the controls Figure 14.1-1. Permanent-magnet ac motor drive. Electrical System Command Signal Power Converter Control PM AM Mechanical System Sensors 566 PERMANENT-MAGNET AC MOTOR DRIVES ...
Ngày tải lên: 16/02/2014, 18:54
HOBBYKING BRUSHLESS ELECTRONIC SPEED CONTROL FOR CAR OR TRUCK potx
Ngày tải lên: 16/03/2014, 12:20
báo cáo hóa học:" Scan speed control for tapping mode SPM" docx
... As a result, the speed of a closed-loop control system (that is, without loss of surface) is determined by the time constant 0 0 i G K τ . Feedback speed, the speed of the actuator, is limited ... control [1, 2]. Let us find the maximum scan speed without loss of surface. The transient response of the loop control to a capacitive displacement sensor output (if the high-frequency pole ... line traces of the calibration grating with the step height equal to 25 nm. At a constant speed of 30 µm/s (a), with a dynamic control (b), and with a dynamic control and at a variable speed...
Ngày tải lên: 21/06/2014, 17:20
ADVANCES IN MOTOR TORQUE CONTROL pdf
... frequency 1/τ q .is 20 (Hz) because reaction torque Advances in Motor Torque Control 16 Sub motor controller Sub motor Rack & Pinion Torque Sensor Main motor Electric Signal Line Planetary ... torque- control motor capable of achieving faster and easier root canal preparation. Speed and maximum torque levels are preselectable and constantly controlled by the TCM III control unit. Speed ... electric motors without torque control and the electric torque control motors. (Fig 4) Fig. 4. Torque control motor. Theoretically, the torque control hand pieces (motors) take into consideration...
Ngày tải lên: 29/06/2014, 09:20
SINUSOIDAL PWM OPERATION OF AN AC INDUCTION MOTOR CONTROLLER
Ngày tải lên: 17/12/2013, 18:06
Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
... dynamic performancecompar- ison ofthe drive during acceleration where acceleration torque is very low due to slow acceleration. The machine hasa speed- sen- sitive load torque which is evidentfrom ... NEURAL-NETWORK-BASED SPACE VECTOR PWM CONTROLLER 669 A CKNOWLEDGMENT The authors wish to acknowledgethe help ofProf. C. Wang of China University of Mining and Technology, China (currently visiting faculty at ... 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 and the corresponding functions,...
Ngày tải lên: 22/12/2013, 08:16
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... detect the outputs of an induction motor, we can use this motor controller to control an induction machine. • TMS320F243 DSP controller. This is manufactured by the Texas Instruments Company ... nominal speed. However, outside the rated speed operation, the flux has to be decreased like an inverse function of speed. By weakening the rotor flux, the induction machine can reach speeds ... to develop a control strategy for the DSP controller that controls the torque production within the induction machine. However, there is no great emphasis placed on precise torque control. ...
Ngày tải lên: 27/10/2013, 23:15
Tài liệu Controlling the Playback Speed and Direction of a Timeline docx
... dialog box. However, you can control the direction in which the timeline moves as well as its speed by using ActionScript. In fact, by combining scripting elements (which control direction) with ... < Day Day Up > Controlling the Playback Speed and Direction of a Timeline Normally, a movie's timeline plays in a forward direction at a pace dictated by the fps (frames ... values when you interact with one of the playback control buttons. 4. Insert the following conditional statement within the handleMessage() function definition: 5. 6. if(action == "play"){...
Ngày tải lên: 24/12/2013, 07:17
Motor control sensor feedback circuits
... circuits. FIGURE 13: Block Diagram of a Sensorless BLDC Motor Control. 3-Phase Inverter Bridge PIC18FXX31 PWM5 PWM4 PWM3 PWM2 PWM1 PWM0 A C B V REF_A BACK EMF ZERO-CROSSING COMPARATOR CIRCUITS V DC V DC V DC V DC BEMF A BEMF B BEMF C V REF_B V REF_C AN894 DS00894A-page ... Technology Inc. BACK EMF CONTROL METHOD The back electro-magnetic-force (EMF) or sensorless motor control method obtains the speed and position of the motor directly from the voltage at the motor windings. ... SENSING METHODS FIGURE 2: AC Motor Current Measurement. Current Sensing Method Shunt Resistor Hall Effect Current Sensing Transformer Accuracy Good Good Medium Accuracy vs.Temperature Good Poor...
Ngày tải lên: 03/01/2014, 18:55
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