Cascaded Tanks Benchmark Combining Soft and Hard Nonlinearities

The considered cascaded tanks system is a fluid level control system consisting of two tanks with free outlets fed by a pump. The input signal controls a water pump that delivers the water from a reservoir into the upper water tank. The water of the upper tank flows through a small opening into the lower tank, and finally through a small opening from the lower tank back into the reservoir. This benchmark combines soft and hard nonlinearities to be identified based on relatively short data records.<br>All the provided files and information on the cascaded tanks system are available for download here. The zip-file contains a detailed system description, the estimation and test input-output time series data sets, and some pictures and a video of the setup. The data is available in the .csv and .mat file format.<br>

本次研究涉及的级联水箱系统为一类液位控制系统，包含两个带自由出口的水箱，整体由水泵驱动供水。输入信号控制水泵，将储水库中的水泵送至上部水箱。上部水箱内的水经小型开孔流入下部水箱，最终下部水箱的水再通过另一小型开孔回流至储水库。该基准测试集兼具软非线性与硬非线性特性，可基于相对较短的数据记录开展系统辨识工作。
所有与该级联水箱系统相关的配套文件及资料均可在此处下载。该压缩包内含系统详细说明文档、用于模型辨识与性能测试的输入输出时序数据集，以及该实验装置的实拍图片与一段演示视频。数据集提供.csv与.mat两种文件格式。