| Popis: |
Induction motors of wound rotor or squirrel cage type are widely used in industry application due to their low cost and robustness. Nevertheless, for a long time, these types of motors were used especially in variable speed drives. During the two last decades, due to the great progress in microelectronic control systems and power converters they became also an important in controlled constant speed drives. This paper presents a solution to control an AC induction motor (IM) using Waijung Blockset and STM32F4 DISCOVRY that enable cost-effective design, reducing the system components and increase efficiency. The aim of this work is to keep a constant speed at variable mechanical torque. Thus a closed loop speed control for an induction motor with scalar control technique is presented. Verification of the proposed controller is provided by experimental tests. The experimental results show the effectiveness of the speed controller with a wide range of load. |
