Title :
Modelling, identification and control of a Langevin transducer
Author :
Ghenna, Sofiane ; Giraud, Frederic ; Giraud-Audine, Christophe ; Amberg, Michel ; Lemaire-Semail, Betty
Author_Institution :
Lab. d´Electrotech. et d´Electron. de Puissance, IRCICA, Villeneuve d´Ascq, France
Abstract :
The control of the vibration amplitude, and the resonance frequency tracking for ultrasonic transducer have been established. However, some applications require to control the vibration amplitude and its relative phase at a fixed frequency as the generation of travelling wave. In this paper, the transducer is modelled in rotating frame, and the decoupling according to two-axis allows to obtain a double independent closed loop control to address this issue. It is possible to control the transducer vibration amplitude and its relative phase, in steady state even in transient by acting on the amplitude of the supply voltage. Thanks to vector control method. This approach will be confirmed with experimental and simulation results.
Keywords :
closed loop systems; identification; modelling; ultrasonic transducers; vibration control; Langevin transducer; double independent closed loop control; relative phase control; resonance frequency tracking; rotating frame; supply voltage; transducer vibration amplitude control; travelling wave generation; ultrasonic transducer; vector control method; Frequency control; Mathematical model; Resonant frequency; Transducers; Vibrations; Voltage control; Voltage measurement; Control of piezoactuator; Identification of piezo-actuator; Langevin ultrasonic transducer; Vector control; modelling in a rotating reference frame; piezoelectricity;
Conference_Titel :
Electronics, Control, Measurement, Signals and their Application to Mechatronics (ECMSM), 2015 IEEE International Workshop of
Conference_Location :
Liberec
Print_ISBN :
978-1-4799-6970-8
DOI :
10.1109/ECMSM.2015.7208676
