Title :
A novel V/f control of induction motors for wide and precise speed operation
Author :
Tsuji, Mineo ; Chen, Shuo ; Hamasaki, Shin-ichi ; Zhao, Xiaodan ; Yamada, Eiji
Author_Institution :
Dept. of Electr. & Electron. Eng., Nagasaki Univ., Nagasaki
Abstract :
The V/f control method is one of speed control methods for induction motors. We have proposed an auto-boost voltage method to compensate the voltage drop of stator impedance and a slip frequency compensation method to decrease the speed error caused by the change of load. Stability of the proposed V/f control system is analyzed by root locus. Steady-state torque-speed characteristics and transient responses of proposed system are presented by experimental system. Compared with the constant V/f control method, speed accuracy of proposed method is improved in various speeds and loads.
Keywords :
angular velocity control; compensation; induction motors; machine control; root loci; stability; transient response; V/f control method; auto-boost voltage method; induction motors; root locus; slip frequency compensation method; speed control method; stability analysis; stator impedance; steady-state torque-speed characteristics; transient responses; voltage drop compensation; Control system analysis; Control systems; Frequency; Impedance; Induction motors; Stability analysis; Stators; Steady-state; Velocity control; Voltage; Constant V/f control; auto-boost voltage; induction motor; slip frequency compensation;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on
Conference_Location :
Ischia
Print_ISBN :
978-1-4244-1663-9
Electronic_ISBN :
978-1-4244-1664-6
DOI :
10.1109/SPEEDHAM.2008.4581121
