Title :
Synchronous servodrive: a very compact solution of control problems by means of a single-chip-microcomputer
Author :
Naunin, Dietrich ; Reuss, Hans-Christian
Author_Institution :
Inst. fuer Elektronik, Tech. Univ. Berlin, West Germany
Abstract :
The authors deals with the completely digital control of high dynamic synchronous servodrives with rare-earth permanent-magnet disk rotors. The aim was to bring the hardware of the control unit into a very small and compact form. The realized unit consists of two modules: a 16-bit single-chip microcomputer including measurement value detection, set value output, and communication interfaces, and a MOSFET voltage-source inverter controlled by a PWM (pulsewidth-modulation) techniques. Several control strategies have been realized and compared, a mathematical model of the motor has been derived, methods of voltage-space phasor generation have been found, and digital control algorithms without the support of analog feedback circuits have been implemented. A position-feedback controller has been realized. Results of the digital simulation and of the practical plant are given.<>
Keywords :
digital control; electric drives; microcomputer applications; permanent magnet motors; rotors; servomotors; synchronous motors; MOSFET voltage-source inverter; PWM; digital control; dynamic synchronous servodrives; position-feedback controller; rare-earth permanent-magnet disk rotors; single-chip microcomputer; voltage-space phasor generation; Communication system control; Digital control; Hardware; MOSFET circuits; Mathematical model; Microcomputers; Pulse inverters; Pulse measurements; Pulse width modulation inverters; Voltage control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25073
