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提出一种基于单神经元自适应PSD(proportional sumd ifferential)预测控制器的新型火电厂过热汽温切换控制系统.采用单神经元自适应PSD控制与Levinson预测器相结合的控制方式以改善大滞后、多干扰系统的控制特性,同时利用Foxboro公司I/A系列的DCS控制系统平台对其组态设计(包括无扰切换、前馈补偿以及抗积分饱和等),以实现手自动切换和各控制器之间的合理切换.实验室的多次仿真研究和某火电厂的现场运行均表明该控制系统具有良好的控制品质.
A new superheated steam temperature switching control system based on a single neuron adaptive PSD (Proportional Sum of Prediction) controller is proposed.A single neuron adaptive PSD control and Levinson predictor are used to improve the control of large hysteresis , And more interference with the system’s control features, while using Foxboro’s I / A series of DCS control system platform configuration design (including non-interference switching, feed forward compensation and anti-integral saturation, etc.) in order to achieve automatic hand-switching and control Reasonable switching between the devices.Many simulation experiments in the laboratory and on-site operation of a thermal power plant show that the control system has good control quality.