Open AccessSIMULATION OF SPEED CONTROL OF DRIVES : CONTROLLING BY APPLIED VOLTAGE
Author(s) -
SHAMBULINGANA GOUDA
Publication year - 2022
Publication title -
indian scientific journal of research in engineering and management
Language(s) - English
Resource type - Journals
ISSN - 2582-3930
DOI - 10.55041/ijsrem11729
Subject(s) - control theory (sociology) , induction motor , stator , wound rotor motor , constant (computer programming) , torque , voltage , vector control , direct torque control , robustness (evolution) , brushed dc electric motor , electronic speed control , ac motor , electric motor , computer science , engineering , physics , electrical engineering , control (management) , biochemistry , chemistry , artificial intelligence , gene , thermodynamics , programming language
The induction machine is the work horse of the industry. It has rugged construction and is suitable for many high power applications. Induction motors are the most widely used electrical motors due to their reliability, low cost and robustness. However, induction motors do not inherently have the capability of variable speed operation. Due to this reason, earlier dc motors were applied in most of the electrical drives. But the recent developments in speed control methods of the induction motor have led to their large scale use in almost all electrical drives. Out of the several methods of speed control of an induction such as pole changing, frequency variation, variable rotor resistance, variable stator voltage, constant V/f control, slip recovery method etc., the closed loop constant V/f speed control method is most widely used. In this method, the V/f ratio is kept constant which in turn maintains the magnetizing flux constant so that the maximum torque remains unchanged. During starting of an induction motor,