微型反应装置中电加热炉的温度控制

Temperature Control of Electric Heater in Micro-Reaction-Equipment

介绍了电加热炉的一种温度控制方法 .利用热电偶测量温度 ,选用串级控制方案 ,主调节器由变速积分算法构成 ,副调节器由纯比例构成 .讨论了热电偶的冷端补偿和非线性校正 ,对温度控制中的积分丢失现象作了分析并给出解决办法 ,对系统的硬件和软件作了必要说明 .

A temperature control method of electric heater is in troduced in this paper.Temperature is detected by thermocouple,and a cascade control scheme is applied.Main regulator is speed-variable PI algortithm and vice-regulator is purelypro portional algorithm.Integral loss in temperature control is analysed and its solving method is given.The cold-end compensation and nonlinear correction of thermocouple are discussed.The hardware and software of the system are explained.