ac motor speed control circuit using triac
DC bus control of variable speed wind turbine using a buck boost converter
... simple linear circuit can represent each of the two states where the switches in the circuit are replaced by their equivalent circuit during each state. The circuit diagram for each of the two ... variable -speed 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, ... proposed MPPT control method. Fig.7: Wind turbine output power without MPPT control method for low wind speed. Fig.8: Wind turbine output power with MPPT control method for low wind speed. ...
Ngày tải lên: 03/01/2014, 19:15
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... power amplifier. Motor speed is measured using an analog tachometer. Figure 2. Physical System Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 5 ... angular speed ω c . Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 12 7. Control Design The objective of the exercise is to control the angular speed of ... 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...
Ngày tải lên: 25/01/2014, 13:20
bài giảng-vhdl - Very High speed integrated circuit Description Language
Ngày tải lên: 12/09/2013, 22:38
Embedded Control Applications Using AT89S52
... 6.2 Microcontroller based control for nylon rubber stamp making machine 6.2 Microcontroller Based Control for Nylon Rubber Stamp Making Machine 109 140 6 Embedded Control Applications Using AT89S52 ... Lamp Controller 6.2 Microcontroller Based Control for Nylon Rubber Stamp Making Machine Control 6.3 A Tiny BIOS or Diagnostic Interface with MCS51 6.4 Simple Digital IC Tester 6.5 Microcontroller ... Interface 6.7 Sensor Matrix Interface 6.8 Design Micricontroller Based Servo Controller 6.1 Night Lamp Controller In this application automatic switching of night lamp is implemented using...
Ngày tải lên: 03/10/2013, 01:20
Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
... . 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 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 ô SPC Gas Springs, cushioned: Prevents bounce back of sheet metal retainer. Increased productivity through...
Ngày tải lên: 22/01/2014, 02:20
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 khoa học: "THE PROCESS OF COMMUNICATION IN FACE TO FACE VS. COMPUTERIZED CONFERENCES; A CONTROL EXPERIMENT USING BALES INTERACTION PROCESS ANALYSIS" pot
... the percentage distribution for each individtu~l, in each condition. Thus, we actu~S-ly have the Bales distributions for each of 80 individuals in a face to face conference, and in a computerized ... feeling" ?7 METHOD The number of Bales units per face to face group was much greater than the number for acc group. There- fore, each individual and group was transformed to a percentage ... in a proposed course of action or carrying out of any activity which has been requested by others. There is significantly more agreement overtly expressed in face to face confer- ences than...
Ngày tải lên: 24/03/2014, 01:21
intelligent control systems using soft computing methodologies
... Introduction 6.2 Self Similar Packet Traffic 6.2.1 Fractal Properties of Packet Traffic 6.2.2 Impacts of Fractal Nature of Packet Traffic 6.3 Neural Network Modeling of Packet Traffic 6.3.1 Perceptron ... B., Designing Fuzzy Net Controllers Using Genetic Algorithms, IEEE Control Syst., Vol. 15, No. 3, 66, 1995. 110. Karr, C.L., Design of an Adaptive Fuzzy Logic Controller Using a Genetic Algorithm, ... truck-backing problem [116]; automotive active suspension control [117]; temperature control of brine heater [119]; hepatitis diagnosis problem [120]; classification of flowers. [121]and position control...
Ngày tải lên: 01/06/2014, 09:57
Báo cáo khoa học nông nghiệp " FRUIT FLIES AND THEIR CONTROL BY USING PROTEIN BAIT IN VIETNAM " pdf
... 100 3.4.4. Control fruit fly by using protein bait for large area in some provinces After some experiment to control fruit fly by using protein bait for large area of apple and peach in 2003-2005 ... and percentage of fruits infested in each commodity, and the stage of maturity when attacked. Control by using protein bait Treatment was applied on peach, luffa, guava… Mixing: 100ml Ento ... of peaches. Experimental results indicate that bait spraying is the most effective treatment. This method of fruit fly control through using protein bait on large areas of apples and peaches...
Ngày tải lên: 21/06/2014, 05:20
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 àm/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
Báo cáo hóa học: " Research Article Embedded Vehicle Speed Estimation System Using an Asynchronous Temporal Contrast Vision Sensor" pdf
... vehicle speeds and compare to 5 min. average traf- fic speed as reference. In [5, 7] a theoretical estimate of the speed measurement accuracy using uncalibrated cameras is given. In [6] video tracking ... roughly 30% of the CPU time. 6. ACCURACY ESTIMATION The following section gives an estimation of the accuracy of the vehicle speed estimation method. The system accu- racy is limited by the finite temporal ... levels from 0 (white) to 15 kevents/s (dark). Each vehicle produces compact point clouds of AEs in (t, i)and(t, j) space representing the ve- hicles track when moving towards the imager. The temporal development...
Ngày tải lên: 22/06/2014, 22:20
