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>