Abstract
Generally, an open-loop step test is performed when the process is at zero initial state or in a nonzero steady state, so that an obvious dynamic (or transient) response of the process to a step change of the process input can be observed and measured for model identification. Certainly, a larger magnitude of the step change can facilitate a better observation of the transient response.
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Liu, T., Gao, F. (2012). Step Response Identification of Stable Processes. In: Industrial Process Identification and Control Design. Advances in Industrial Control. Springer, London. https://doi.org/10.1007/978-0-85729-977-2_2
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DOI: https://doi.org/10.1007/978-0-85729-977-2_2
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