Servomechanism Using Traction Drive. 2nd Report, Improvement of Servo Accuracy at High-Speed Rotation.

Intelligent-speed-increasing Spindle Using Traction Drive

INTRODUCTION Recently, a milling for die using a small end mill of diameter less than 1 mm is increased, because sizes of plastic mold parts such as connectors for an IT and an electronics becomes micro extremely. In general, a tool life is long and a good cut surface is obtained as a cutting speed is high. A speed-increasing spindle, which is attached to a shank may be used to increase the cut...

FPGA-based High Performance AC Servo Motor Drive – Accelerator configurable servo drive design platform

In recent years, a Digital Signal Processor (DSP) or Microcontroller has been widely used for implementing the digital motor control algorithm in the motor drive industry. Application spans widely from a low performance appliance AC inverter drive to a high performance servo drive. Today’s digital AC drive consists of the implementation of torque control by means of regulating the motor current...

Suppression of torsional oscillations in a high-performance speed servo drive

This paper deals with the problem of mechanical resonance in modern servo drive systems having the speed control loop bandwidth and resonance frequency above 100 Hz. To enable the extension of the range of stable gains in the presence of flexible coupling, a simple and straightforward modification of the speed loop controller is proposed in order to augment the performance of present speed cont...

A FUZZY-BASED SPEED CONTROLLER FOR IMPROVEMENT OF INDUCTION MOTOR'S DRIVE PERFORMANCE

Induction motors (IMs) are widely used in many industrial applications due to their robustness, low cost, simplicity and relative good efficiency. One of the major considerations for IMs is their speed control. PI (proportional-integrator) controllers are usually used as speed controller. Adjusting the gain of PI controller is time-consuming which needs thorough considerations. Hence, fuzzy con...

High-speed, high-drive SN74ABT7819 FIFO