【摘要】 为增强灌区闸门调节的预见性,避免因频繁调节影响闸门的使用寿命,引入信息融合理论,基于不确定系统输入的状态方程和量测方程,通过叠加"干扰用水"对系统输入进行估计,实现了对系统状态的跟踪和预测。在此基础上,以PID调节器为例,通过引入全局预测信息,增加闸门调节所依据的信息量和信息的互补性,并应用信息融合技术进行综合,改善了闸门调节器性能。所提出的闸门调节方法适用于渠系水流一类具有明显惯性和时滞现象的非线性系统。该方法对其他调节器同样适用。更多还原

【Abstract】 For improving regulating predictability of irrigation gate so as to avoid shortening its service life due to frequent operation,information fusion theory is applied into water information field. Based on the state equation of indeterminate system input and measurement equation,the presented method superimposes " noise of water consumption" to estimate the system input,realizing tracking and forecast of the system state. Based on this,by considering global forecasting information and applying technology of information fusion,the presented method increases amount of information and information complementarity of PID controller,based on which the irrigation gate can be adjusted. The proposed method improves performance of the gate controller,thus suiting for regulating of canal water that is a nonlinear system characterized by obvious inertia and delay phenomenon. It is noted that the proposed methodology can also be applied to other controller besides PID controller.更多还原