Accurate temperature control of runway ice active detection device based on LADRC
The active detection of ice on the runway surface is an important tool to ensure the safe operation of flights;to address the drawbacks of the current ice detection,which is mostly a passive post-ice detection,a runway ice active de-tection device was proposed with a thermoelectric cooler as the core,to simulate the runway temperature and ice conditions in a small area in advance to achieve runway ice prediction.Numerical analysis showed that the temperature control of the device is susceptible to the influence of internal parameters and external environmental disturbances during operation.To achieve accurate temperature control,a temperature control method based on linear active disturbance rejection controller(LADRC)was proposed,and a time-varying gain method was used to improve the expansion state observer(ESO).Sim-ulation results showed that LADRC control has better immunity to disturbances than PID and NLPID,with MSE reduced by 57.22％and 55.77％under total disturbances,respectively.Experimental results in the low temperature chamber and outdoor low temperature environment showed that the device can respond quickly to reach the target temperature with a steady state error of 0.05 ℃;it can meet the needs of icing condition simulation and active ice detection.
active ice detectionthermoelectric cooler(TEC)accurate temperature controlLADRC
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维普
