The PID control systems were tuned using well?known PID tuning methods, such as Ziegler?Nichols, Chien?Hrones?Reswick, Cohen?Coon, IMC, Opt, Pole? Assignment, and Gain Phase Margin, for several classical thermal models.

• 针对若干典型热工对象,对一些典型的PID整定方法:Ziegler-Nichols方法、Chien-Hrones-Reswick方法、Cohen-Coon方法、IMC方法、IST2E最优方法、极点配置方法、幅值相位裕量方法所设计的PID控制系统的过渡过程性能进行了比较。