A new multivariable control concept for the falling film evaporator process

Julian Hofmann, Anton Ponomarev, Veit Hagenmeyer, Lutz Gröll

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование


The paper presents a new multivariable control concept for falling film evaporators (FFEs). Our concept solves the major challenges encountered in modern FFE control: large transport delays, additional control of the output mass flow, coupling of controlled variables, and disturbances due to time-varying input dry matter content. The challenges are addressed together, for the first time, by the following control design. Based on a dynamic nonlinear input–output model, we consider a linearizing output transformation to enable application of classical linear control methods composed of feedforward design, disturbance rejection, and a decoupling network. Due to these features, we are able to design robust PID and PI controllers that substantially compensate plant-model mismatches. Connecting our concept to a digital twin of the plant yields good performance, which encourages future application of the design in the real-world process.

Язык оригиналаанглийский
Страницы (с-по)72-83
Число страниц12
ЖурналJournal of Process Control
СостояниеОпубликовано - окт 2021

Предметные области Scopus

  • Системотехника
  • Моделирование и симуляция
  • Прикладные компьютерные науки
  • Промышленная технология и станкостроение


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