- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
Active control can expand operation range of compression systems. However, most of existing active controllers depend on known system characteristics and thus have limited engineering application. Robust control methods are used to alleviate the negative effects of uncertainties, but, with conservative results. In order to overcome the weakness of existing active controllers, a second-order MG surge model was presented using a close-coupled valve as actuator. Then, one active surge controller was designed based on backstepping control, in which, fuzzy system was used to model unknown system characteristics. Simulation results showed that the designed controller stabilized compression system outside the surge line, enlarge compressor’s working range and additionally showed strong robustness against uncertainties such as unmodelled dynamics, flow and pressure disturbances.