PMID- 18238472
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20091214
LR  - 20080201
IS  - 0885-3010 (Print)
IS  - 0885-3010 (Linking)
VI  - 46
IP  - 3
DP  - 1999
TI  - An adaptive fuzzy-neural-network controller for ultrasonic motor drive using the 
      LLCC resonant technique.
PG  - 715-27
LID - 10.1109/58.764858 [doi]
AB  - In this study an adaptive fuzzy-neural-network controller (AFNNC) is proposed to 
      control a rotary traveling wave-type ultrasonic motor (USM) drive system. The USM 
      is derived by a newly designed, high frequency, two-phase voltage source inverter 
      using two inductances and two capacitances (LLCC) resonant technique. Then, 
      because the dynamic characteristics of the USM are complicated and the motor 
      parameters are time varying, an AFNNC is proposed to control the rotor position 
      of the USM. In the proposed controller, the USM drive system is identified by a 
      fuzzy-neural-network identifier (FNNI) to provide the sensitivity information of 
      the drive system to an adaptive controller. The backpropagation algorithm is used 
      to train the FNNI on line. Moreover, to guarantee the convergence of 
      identification and tracking errors, analytical methods based on a discrete-type 
      Lyapunov function are proposed to determine the varied learning rates of the FNNI 
      and the optimal learning rate of the adaptive controller. In addition, the 
      effectiveness of the adaptive fuzzy-neural-network (AFNN) controlled USM drive 
      system is demonstrated by some experimental results.
FAU - Lin, F J
AU  - Lin FJ
AD  - Dept. of Electr. Eng., Chung Yuan Christian Univ., Chung Li, Taiwan. 
      linfj@dec.ee.cycu.edu.tw
FAU - Wai, R J
AU  - Wai RJ
FAU - Lin, H H
AU  - Lin HH
LA  - eng
PT  - Journal Article
PL  - United States
TA  - IEEE Trans Ultrason Ferroelectr Freq Control
JT  - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JID - 9882735
EDAT- 2008/02/02 09:00
MHDA- 2008/02/02 09:01
CRDT- 2008/02/02 09:00
PHST- 2008/02/02 09:00 [pubmed]
PHST- 2008/02/02 09:01 [medline]
PHST- 2008/02/02 09:00 [entrez]
AID - 10.1109/58.764858 [doi]
PST - ppublish
SO  - IEEE Trans Ultrason Ferroelectr Freq Control. 1999;46(3):715-27. doi: 
      10.1109/58.764858.