应用于试验系统的一种恒温控制方案

A Constant Temperature Control Scheme in Experimental System Application

军用和航空零部件的耐温性是一项重要指标,目前常用的试验装置存在精度低、抗干扰差、热惯性大的不足.针对这一问题,提出了通过对控制目标进行动态修正实现恒温控制的方案.对试验系统建立数学模型,分析并推导出状态空间方程,通过仿真计算给出动态目标修正参数,最后进行了计算机仿真和耐温性实验,结果证明该方案控制精度高、抗干扰能力强、能有效地克服热惯性大的影响.

Heat resistance is a critical parameter for military and aircraft components, Current widely used experimental systems have some problems such as low accuracy, low antijamming and large heat inertia. To solve these problems, a scheme is proposed by using dynamical amending method for the controlled object to implement constant temperature control. First, a mathematical model about the experimental system is established. Then the state-space equation is analyzed and developed. The parameters of the dynamical object amending are determined by simulation. Finally,it is proved by computer simulation and experimentally that the scheme of constant temperature control has high accuracy, high antijamming and effectively conquers the effect of large heat inertia.