Abstract
The dynamic mathematical model of a turbine-driven centrifugal compressor was established. A fuzzy PID controller for the compressor was designed and the dynamic response characteristics of the compressor were examined. The results show that the fuzzy PID controller designed can reduce the overshoot of the system dynamic response compared with the conventional controllers and eliminate steady state errors quickly when disturbance occurs, leading to the greater system response speed. Considering the coupling of the compressor flow rate, pressure ratio, and speed, the controller can govern the turbine speed and opening of the anti-surge valve, respectively. Thus the operation point is never located in the surge area and the pressure ratio reaches the set value in 40 s. It seems that the controller developed can improve the control effect and save energy.
| Original language | English |
|---|---|
| Pages (from-to) | 76-81 |
| Number of pages | 6 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 45 |
| Issue number | 7 |
| State | Published - Jul 2011 |
Keywords
- Anti-surge
- Fuzzy PID controller
- Pressure ratio
- Turbine compressor set
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