Abstract
A new hybrid fuzzy controller for direct torque control (DTC) induction motor drives will be presented in this paper. The newly developed hybrid fuzzy control law consists of proportional-integral (PI) control at steady state, PI-type fuzzy logic control at transient state, and a simple switching mechanism between steady and transient states, to achieve satisfied performance under steady and transient conditions. The features of the presented new hybrid fuzzy controller will be highlighted by comparing the performance of various control approaches, including PI control, PI-type fuzzy logic control (FLC), proportional-derivative (PD) type FLC, and combination of PD-type FLC and I control, for DTC-based induction motor drives. The pros and cons of these controllers will be demonstrated by intensive experimental results. It will be shown that the presented induction motor drive is with fast tracking capability, less steady state error, and robust to load disturbance while not resorting to complicated control method or adaptive tuning mechanism. Experimental results derived from a test system will be presented confirming the above-mentioned claims.
| Original language | English |
|---|---|
| Pages (from-to) | 1211-1219 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 18 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2003 |
Bibliographical note
Funding Information:Manuscript received November 19, 2001; revised April 3, 2003. This work was supported by the National Science Council under Grants NSC90-2213-E-027-025 and NSC91-2213-E-027-028. Recommended by Associate Editor J. Ojo.
Keywords
- DTC
- FLC
- Fast tracking
- Fuzzy controller
- Induction motor drives
- PD
- PI
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