فهرست مقالات Servo motor

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  1 - Investigation of the Stability of the Ball and Beam by the PID Controller
  Mojtaba Hadipour Ali Hosseinzadeh Mohsen Sadidi
  10.30495/admt.2021.1897179.1189
  The purpose of this research is to construct and investigate the stability of the ball and beam control system with PID coefficients derived from the simulation and compare them. In this research, by first obtaining the mathematical model of the mechanical system and it چکیده کامل

  The purpose of this research is to construct and investigate the stability of the ball and beam control system with PID coefficients derived from the simulation and compare them. In this research, by first obtaining the mathematical model of the mechanical system and its simulation, the best PID coefficients are selected for it to minimize the settling time and the error. Then, to create this system, the types of mechanisms provided for the ball and beam control system are examined. Depending on the equipment and facilities available, the best design is chosen and built. The best design is the use of the four_bar mechanism using the servo motor and the ultrasonic sensor. The appropriate design is first developed in SolidWorks software to provide accurate measurements for the production of components. Laser cutting and 3D printers are used to produce system components. After the control system is built, the simulation coefficients in the MATLAB software are inserted into the system microcontroller program to check the system responses to the various control coefficients obtained. So doing multiple experiments indicated that the best PID coefficients for this system are PD coefficient. The difference between the experimental graph and the simulation graph is their overshoot. They also have different settling times. One of the reasons for this difference is the use of some approximations as well as disregarding friction. پرونده مقاله
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  2 - Reduction of Speed Ripple in BLDC Motor Aimed at using in the Servomotor of Aircraft Flap
  Mohammadreza Soltanpour Hamid Radmanesh Reza Sobhani
  Drivers of brushless direct current motor (BLDC) are widely used for industrial servo applications, including servo motors used in aircraft flaps, where torque smoothness is a key requirement. One disadvantage of torque pulses, however, is the pulsation that causes the چکیده کامل

  Drivers of brushless direct current motor (BLDC) are widely used for industrial servo applications, including servo motors used in aircraft flaps, where torque smoothness is a key requirement. One disadvantage of torque pulses, however, is the pulsation that causes the speed to fluctuate, which affects the performance of the drive, especially at low speeds and sensitive applications. In this research, to reduce these speed ripples, the iterative learning method (ILC) is presented. Although in brushless direct current motors, a conventional proportional-integral (PI) speed controller suppresses the speed ripples to some extent, the use of this controller alone is not sufficient for many high-performance applications. The simulations showed that utilizing the proposed control to the driver of BLDC motor could well reduce the motor speed ripple. پرونده مقاله