What are the advantages of using level-flow cascade control for the stripper level compared to separate level control?
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What are the advantages of using level-flow cascade control for the stripper level compared to separate level control?
Both normal control and flow cascade control are used to prevent level fluctuations caused by unstable flow rates.
The use of cascade control is intended to avoid excessive fluctuations in flow rate.
Cascade control prevents flow fluctuations from being too severe. Cascade control uses algorithms to increase or decrease the flow rate evenly. Exceptions to this rule apply.
Generally, cascade control is used in situations where the controlled variable is difficult to achieve, such as flow rate and temperature. It cannot be considered in isolation; it is necessary to analyze the operating conditions, the mathematical model, as well as the desired outcome. In terms of performance, cascade control is superior to single-loop control