基于增量式PID算法和逆变调功的外层空间温度环境模拟系统设计

针对外层空间温度环境模拟系统需承受高剂量辐照的要求，建立了空间温度和辐照环境模拟系统的结构模型，选用制冷机组和加热组件实现了系统加热和制冷，结合防冻液循环与气体循环的方式实现了环境模拟温箱温度远程控制和防辐照设计。将温控过程分为制冷、加热和保温3个阶段，并采用增量式PID控制算法、逆变调功方法和模糊控制方法进行控制，温控效果良好。试验结果表明，环境模拟温箱实际温变曲线与设定的温变曲线拟合良好，达到了主要技术指标，可以满足空间温度环境模拟系统的要求。

Design of Temperature Environment Simulation System for Outer Space Based on PID Control Method and Inverter Power Adjusting Technology

Considering the request of high dose radiation born by the temperature environment simulation system for outer space, the structure model of the space temperature and radiation environment simulating system is built. Refrigerating unit and heating components are used to heat and refrigerate the antifreeze. The remote temperature control and anti-radiation design of the system are achieved through the circulation of antifreeze and gas. Temperature control process is divided into three stages, including refrigerating stage, heating stage and heat insulating stage. Increment PID control method, inverter power adjusting technology and fuzzy control method are adopted in the temperature control of environment simulation system, and the excellent control effect is achieved. Experimental results show that the actual temperature control curve is in accordance with the given one, and can satisfy the request of the space temperature environment simulation system.