There are two main types of nonlinearities in a steam generating unit automation control system.
Юрій Михайлович Ковриго, Роман Петрович Саков 2016, 'Maintaining of actuators and final control elements modeling in a steam generatingunit control system', Vìsnik Priazovsʹkogo Deržgavnogo Tehničnogo Unìversitetu. Serìâ: Tehnìčnì Naukihttp://journals.uran.ua/vestnikpgtu_tech/article/view/70164. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The producer can withhold the energy of his own generating unit in a continuous range of its available capacity.
H. Bakhshandeh, A. Akbari Foroud 2016, 'Development of Reinforcement Learning Algorithm to Study the Capacity Withholdingin Electricity Energy Markets', Iranian Journal of Electrical and Electronic Engineeringhttp://ijeee.iust.ac.ir/browse.php?a_code=A-10-515-12&slc_lang=en&sid=1. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This paper discusses a biochemical energy-generating unit driven by ion fluctuations and spontaneous enzyme conformational changes.
Sergio Manzetti 2011, 'Renewable Energy Driven by Le Chatelier's Principle, Enzyme Function, and Non-AdditiveContributions to Ion Fluctuations: A Hypothesis in Biomechanical and NanotechnologyEnergy Theory', Journal of Nanotechnologyhttp://dx.doi.org/10.1155/2011/158434. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)