基于非线性模型的矿用救生舱温度控制

针对矿用救生舱舱内温度保持恒定的控制问题，采用非线性系统辨识的方法对舱内温度变化规律进行辨识，得到了救生舱舱内温度变化过程的二阶非线性Volterra级数模型；确立了控制性能指标；在此基础上，应用非线性模型预测控制策略，以及优化迭代算法对舱内温度进行实时控制。经模型试验和现场试验证明，该控制策略可以对救生舱舱内温度进行有效的控制，且具有一定的鲁棒性和较快的响应速度。

Temperature control system for coal mine refuge chamber based on nonlinear mathematical model

Aiming at the problem of keeping temperature constant in coal mine refuge chamber,the nonlinear system identification was adopted to identify the temperature changing in the chamber.A 2-order nonlinear Volterra series model was acquired,and the control target was determined.Based on the above,nonlinear model prediction control and optimal iterative algorithm were adopted to execute real-time control.It is proved that the control strategy can control temperature in coal mine refuge chamber effectively by experiments,which are accomplished in both a model chamber and a practical chamber.Furthermore,the response speed of proposed control strategy is improved,and at the same time,the control system is stronger robust.