| Title |
A Programmable High-Pass Filter Based Stator Flux Estimation for a Direct Vector Controlled Induction Motor Drive System |
| Authors |
전태원(Jeon, Tae-Won) ; 최명규(Choe, Myeong-Gyu) |
| Keywords |
Programmable High-Pass Filter ; Stator Flux Estimation ; Integration |
| Abstract |
The novel integration method with programmable high-pass filter is suggested in order to solve the problem of integration for stator flux estimation in a stator flux oriented direct vector controlled induction motor drive system. The dc offset in a pure integrator is eliminated using high-pass filter with fixed time constant, and then time constant of programmable high-pass filter is controlled with a inverter frequency for integration in a wide frequency range, considering phase lag and attenuation due to both the hardware low-pass filter and high-pass filter. The proposed method is verified with the experimental results implemented by 32-bit DSP. |