Aimed at these properties of the pH value control, including delay, nonlinear, time-varying characteristics and lack of the accurate mathematical model, advanced control algorithms were analyzed. The intelligent controller based on RBF neural network fuzzy PID was designed.
4.针对电厂除盐水的pH值控制具有纯滞后、非线性、时变性等特性,且难以建立精确的数学模型,进一步分析先进控制算法,设计了基于RBF神经网络模糊PID智能控制器。
参考来源 - 除盐水自动加氨控制系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Doppler effect reflects the time-varying characteristics of wireless channel.
多普勒效应体现了无线信道的时变特性。
Then, online adjustment was put forward to overcome the error caused by the time-varying characteristics of the system.
接着，提出通过等效模型的在线修正以克服系统时变性所导致的误差。
For the complex, time-varying characteristics of power system, a smart model for transient stability assessment and control is proposed.
针对电力系统运行方式复杂、时变的特点，提出了智能化暂态稳定评估与控制模型。
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