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中文摘要：
针对连续搅拌反应釜系统（CSTR）大滞后，大惯性以及动态特性随工况不确定性变化的特点，通过设计参数可调的跟踪微分器和扩张状态观测器，改进经典PID算法的固有缺陷，提出不依赖于精确CSTR模型的离散自抗扰控制方案．采用西门子新一代工业可编程控制器-SIMATICPCS7在多动能过程与控制系统的CSTR实验仿真对象上实现了温度的稳定控制．试验结果表明，用ADRC技术建立的连续搅拌反应釜控制系统对被控对象模型的不确定性和外部扰动变化具有较强的适应性和鲁棒性，动态性能良好．
英文摘要：
In light of the large delay, strong inertia, and uncertain dynamic characteristics of continuous stirred tank reactor （CSTR） system, a discrete active disturbance rejection control scheme is proposed free from explicit CSTR model. In this scheme the trace differentiator and extended state observer with adjustable parameters are designed to overcome the shortcomings of classic PID controller, and then the latest SIEMENS programmable controller of SIMATIC PCS7 is employed in the emulation CSTR object which fabricated in the new multifunction process and control experiment system to gain stable control of temperature. The result of the tests shows that the main steam temperature control system with ADRC ensures very good robustness and adaptability under modeling uncertainty and external disturbance, and produces better dynamic performance than classic PID controller in the operation conditions.
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