Feature model-based continuous sterilization adaptive double controller

The invention discloses a feature model-based continuous sterilization adaptive double controller, and belongs to the technical field of biological control. According to the controller, a steam valve and a material valve for controlling flow rate at a steam inlet of a steam ejector and flow rate at a material inlet are used as control quantities, and material temperature at an outlet of the ejector is used as a controlled quantity. The distribution relationship of the steam flow rate and the material flow rate is rationally planned by using a feature model-based adaptive control method and adopting a double control distribution strategy, so the maximum production efficiency (namely the material flow rate is as large as possible) is guaranteed in the entire continuous sterilization process, and accurate control over the temperature at the outlet of the ejector can also be realized. According to the controller, the influence of various measurable quick-change disturbances and an unmeasurable slow-change parameter is effectively considered, the calculated amount is small, few adjustable parameters are available, and the controller is suitable for engineering application. The controller can be widely applied to a biopharmaceutical continuous sterilization automatic control system for heating and sterilizing various culture mediums by the steam ejector.