MAGNETIC COUPLING BETWEEN DC TACHOMETER AND MOTOR AND ITS EFFECT ON MOTION CONTROL IN THE PRESENCE OF SHAFT COMPLIANCE by
نویسندگان
چکیده
منابع مشابه
Magnetic Coupling between Dc Tachometer and Motor and Its Effect on Motion Control
This paper presents an accurate tachometer model that takes into account the effect of magnetic coupling in a DC motor-tachometer assembly. Magnetic coupling arises due to the presence of mutual inductance between the tachometer winding and the motor winding (a weak transformer effect). Tachometer feedback is widely used for servo-control of DC motors, which can suffer from closed-loop instabil...
متن کاملA Fast Torque Response Control Scheme for Medium Voltage CSI Fed Induction Motor Drives
The Current Source Inverter technology is well suited for medium voltage induction motor drives. Because the CSI drive generally features simple converter structure, motor friendly waveforms, inherent four-quadrant operation capability and reliable fuse less short circuit protection. The main draw back lies in its dynamic torque response. An improved Direct Torque Control method is proposed her...
متن کاملShaft Grounding— A Solution to Motor Bearing Currents
Variable Frequency Drives induce shaft voltages onto the shaft of the driven motor because of the extremely high speed switching of the insulated gate bipolar transistors which produce the pulse width modulation used to control AC motors in heating, ventilation, air conditioning and refrigeration systems. This voltage induced on the shaft becomes great enough to overcome the dielectric of the o...
متن کاملActive Optics Control of the Vst Telescope with the Can Field-bus
The VST (VLT Survey Telescope) is a 2.6 m class Alt-Az telescope to be installed at Mount Paranal in the Atacama desert, Chile, on the European Southern Observatory (ESO) site. The VST is a wide-field imaging facility planned to supply databases for the ESO Very Large Telescope (VLT) science and carry out stand-alone observations in the UV to I spectral range, [1]. This paper will focus on the ...
متن کاملEDRS PRICE DESCRIPTORS Thorsheim , Howard I . ; And Others Visual and Kinesthetic Components of Pursuit - Tracking
Seventy-five Ss trained on a pursuit rotor for 10 trials, with ambient illumination from a strobe light flashing at frequencies of either 2, 5, 10, 15, or 20/sec. A transfer trial followed, with a strobe flashing frequency of 10/sec for all Ss. Results supported hypotheses derived from Adams' (1971) closed-loop theory of motor learning that (a) performance would improve during training as a fun...
متن کامل