modelPBandHysteresisSingleMode

Diagram of PBandHysteresisSingleMode

Information

Regulation proportional to hysteresis

Hypothesis and equations

The model returns a value between 0 and 1 from a value X and a setpoint X_ref.>

The regulation is proportional, with a hysteresis loop:

  1. If X-X_ref < - Range, epsilon = epsmax
  2. If X-X_ref > Range, epsilon = 0
  3. If X belongs to [X_ref-Range; X_ref+Range], proportional regulation or epsilon = 0 according to the entry point in the proportional band.

Bibliography

none

Instructions for use

The width of proportional band (Range) must be defined, as well as minimum and maximum values of epsilon, which will determine the slope of the proportional law.

Known limits / Use precautions

none

Validations

Validated model - Frédéric Gastiger, Sila Filfli 2013

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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Frédéric GASTIGER, Sila FILFLI, EDF (2013)
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Parameters

TypeNameDefaultDescription
Realepsmin0.3Minimum value of the output parameter
Realepsmax1Maximum value of the output parameter
RealRange0.5Maximum difference (X-X_ref) before output saturation

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputX
Modelica.Blocks.Interfaces.RealInputX_ref
Modelica.Blocks.Interfaces.RealOutputepsilon