|Author's Email Address
||This thesis had been viewed 5360 times. Download 2690 times.|
||Mechanical and Electro-Mechanical Engineering|
|Type of Document
||Hybrid Fuzzy PID Controller for an Active Vibration Control System via Genetic Algorithms|
|Date of Defense
active vibration control
hybrid fuzzy controller
We use the non-binary coding ,elitist strategy, increasing mutation rate, extinction, and immigration strategy to improve the simple genetic algorithms in this study. We expect that the search technique can avoid falling into the local optimum due to the premature convergence, and purse the chance that finding the near-optimal parameters in the larger searching space could be obviously increased.
The accelerometer is then taken as the feedback sensor for output measurement, and the designed actuator and the PID fuzzy logic controller (PIDFLC) is implemented to actively suppress the vibration of the supporting mechanism that is due to the excitation effect of the high-speed and precision positioning action of the linear motor. From the computer simulations and the experimental results, it is obvious that the near-optimal PIDFLC controller designed by modified genetic algorithms can improve the effect of the vibration suppression; the settling time is also decrease. For the vibration suppressions of high-speed precision positioning problems, the vibrating supporting mechanism can quickly be stabilized.
||Huey-Yang Horng - chair|
Yih-Tun Tseng - co-chair
Ing-Rong Horng - advisor
indicate access worldwide|
|Date of Submission