Title :
A programmable low-pass filter based stator flux calculation for a direct vector control of induction motor
Author :
Chun, T.W. ; Choi, M.G. ; Kim, K.M.
Author_Institution :
Ulsan Univ., South Korea
Abstract :
The paper describes a novel integration method with a programmable low-pass filter for stator flux calculation in a direct vector controlled induction motor drive system. The DC offset in a pure integrator is eliminating using a high-pass filter with fixed time constant. The time constant of programmable low-pass filter is controlled with a synchronous frequency of the induction motor for an integration, considering phase lag and attenuation due to both the hardware low-pass filter and the programmable low-pass filter. The proposed strategy is verified with experiments implemented with a 32-bit TMS320C30 DSP
Keywords :
computerised control; digital filters; induction motor drives; low-pass filters; machine vector control; magnetic flux; power engineering computing; programmable filters; stators; torque control; 32 bit; TMS320C30 DSP chip; direct vector control; filter based stator flux calculation; filter time constant control; induction motor; induction motor drive system; integration method; programmable low-pass filter; Attenuation; Control systems; Frequency estimation; Hardware; Induction motors; Low pass filters; Machine vector control; Rotors; Stators; Voltage;
Conference_Titel :
Science and Technology, 1999. KORUS '99. Proceedings. The Third Russian-Korean International Symposium on
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-5729-9
DOI :
10.1109/KORUS.1999.876267
