TY - GEN
T1 - Simulate research on high precise electro-hydraulic system adjusted by hybrid fuzzy controller
AU - Meng, Jun Xia
AU - Wang, Yu
AU - Wang, Xi Bin
PY - 2009
Y1 - 2009
N2 - Combining Bang-Bang, fuzzy and integral control, a new hybrid controller is proposed for controlling a nonlinear, complex electro-hydraulic system with large moment of inertia of plant. Bang-Bang is adopted to reduce big error rapidly. Fuzzy and integral control enhances robustness of the controller, and eliminate steady-state-error completely. Integral coefficient is changed by a subordinate fuzzy controller online. As a result, Integral has faintly negative effect on system dynamic qualities, and eliminates steady-state-error fast. Using genetic algorithm to optimize scaling factors of main fuzzy controller offline in order to improve control performance. Finally, simulate analysis was made on MATLAB integrated plat. The result shows that the proposed controller has strong robustness, excellent dynamic and static index. It can satisfy control demand of the concerned system completely.
AB - Combining Bang-Bang, fuzzy and integral control, a new hybrid controller is proposed for controlling a nonlinear, complex electro-hydraulic system with large moment of inertia of plant. Bang-Bang is adopted to reduce big error rapidly. Fuzzy and integral control enhances robustness of the controller, and eliminate steady-state-error completely. Integral coefficient is changed by a subordinate fuzzy controller online. As a result, Integral has faintly negative effect on system dynamic qualities, and eliminates steady-state-error fast. Using genetic algorithm to optimize scaling factors of main fuzzy controller offline in order to improve control performance. Finally, simulate analysis was made on MATLAB integrated plat. The result shows that the proposed controller has strong robustness, excellent dynamic and static index. It can satisfy control demand of the concerned system completely.
KW - Bang-bang control
KW - Electro-hydraulic system
KW - Fuzzy control
KW - Genetic algorithm
KW - Hybrid control
KW - Integral with variable coefficient
UR - http://www.scopus.com/inward/record.url?scp=70350557216&partnerID=8YFLogxK
U2 - 10.1109/IFITA.2009.226
DO - 10.1109/IFITA.2009.226
M3 - Conference contribution
AN - SCOPUS:70350557216
SN - 9780769536002
T3 - Proceedings - 2009 International Forum on Information Technology and Applications, IFITA 2009
SP - 153
EP - 157
BT - Proceedings - 2009 International Forum on Information Technology and Applications, IFITA 2009
T2 - 2009 International Forum on Information Technology and Applications, IFITA 2009
Y2 - 15 May 2009 through 17 May 2009
ER -