| |
DIRECT CONTROL OF INDUCTION MOTOR CURRENTS - DESIGN AND EXPERIMENTAL RESULTS
| [View]
[Download]
|
| Author(s) |
H. R. Mayer; G. Pfaff |
| Abstract |
The paper deals with a method for a direct control of the stator currents of an induction motor fed from a VSI-inverter. The design of a suitable control algorithm for direct affecting the three phases of the inverter is explained. The development of the control concept is conducted in the time domain taking as a basis the differential equation system of the machine and the special features of the inverter. By an online solution of these equations an optimal voltage vector is obtained and an appropriate switching sequence for the inverter is calculated. An additional aim consists of the demand for keeping the mean switching frequency of the inverter as low as possible. Since the control coefficients are depending on the speed an adaptive control is necessary. Experimental results obtained from a 70 kVA inverter drive controlled by a fast signal processor are presented demonstrating the performance of the control concept. |
| Download |
| Filename: | Unnamed file |
| Filesize: | 3.943 MB |
|
| Type |
Members Only |
| Date |
Last modified 2021-03-11 by System |
| |
 |