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COMPLETELY DIGITAL CONTROL OF DC AND AC SERVODRIVES USING MOS-FET INVERTERS
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| Author(s) |
D. Naunin; K. Cevik; H.C. Reuss |
| Abstract |
The use of dynamic servomotors with low inertia disc rotors raises the efficiency of industrial robots and manipulators. This paper deals with the completely digital control of dc and ac servodrives. The controller consists of two parts: a single-chip-microcomputer and a Power-MOS-FET inverter. The microcomputer detects the state values of the machine, gets a command value from a master and calculates the set value with the help of an implemented software algorithm. Controlling the dc machine an 8 bit microcomputer is used, the ac machine is controlled by a 16 bit microcomputer. Two types of position detectors are compared: the resolver and the incremental encoder. A state feed-back position control algorithm is implemented. The inverter consists of four/six Power-MOS-FETs with fast antiparallel diodes for the dc/ac machine. Results of the digital simulation and of the measurements of the realized controllers are given. |
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| Filename: | Unnamed file |
| Filesize: | 2.068 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-04 by System |
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