Abstract
Fuzzy logic and sliding mode theory are applied to control a nonlinear, complex electro-hydraulic system with large moment of inertia of load. Fuzzy logic is used to obtain equivalent control signal after system states reaching sliding manifold. As a result, chattering caused by switching action is effectively weakened, and external disturbance is restrained also. In order to design a good fuzzy controller without professional experience, membership functions of then-part and control rules are optimized by means of genetic algorithm simultaneously. Simulation result shows the proposed controller exhibits excellent performance and satisfies control demand of the system adequately.
| Original language | English |
|---|---|
| Pages (from-to) | 392-396 |
| Number of pages | 5 |
| Journal | Dianzi Keji Daxue Xuebao/Journal of the University of Electronic Science and Technology of China |
| Volume | 39 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - May 2010 |
| Externally published | Yes |
Keywords
- Chattering
- Electro-hydraulic system
- Fuzzy sliding mode control
- Genetic algorithm
- Simulation