Buildings.Obsolete.Templates.Plants.Controls.Utilities

Package with utility blocks

Information

This package contains utility blocks that are used to implement the control sequences within Buildings.Obsolete.Templates.Plants.Controls.

Package Content

Name	Description
SortWithIndices	Sort elements of input vector in ascending or descending order
Validation	Collection of validation models

Buildings.Obsolete.Templates.Plants.Controls.Utilities.SortWithIndices

Sort elements of input vector in ascending or descending order

Buildings.Obsolete.Templates.Plants.Controls.Utilities.SortWithIndices

Information

Block that sorts the elements of the input signal u. If the parameter ascending = true, then the output signal y satisfies y_i <= y_i+1 for all i ∈ {1, ..., n-1}. Otherwise, it satisfies y_i >= y_i+1 for all i ∈ {1, ..., n-1}. The output signal yIdx contains the indices of the sorted elements, with respect to the input vector u.

Usage

Note that this block shall only be used for input signals u that are time sampled.
Otherwise, in simulation, numerical noise from a nonlinear solver or from an implicit time integration algorithm may cause the simulation to stall. Numerical noise can be present if an input depends on a state variable or a quantity that requires an iterative solution, such as a temperature or a mass flow rate of an HVAC system.
In real controllers, measurement noise may cause the output to change frequently.

This block may for example be used in a variable air volume flow controller to access the position of the dampers that are most open.

Extends from Modelica.Icons.ObsoleteModel (Icon for classes that are obsolete and will be removed in later versions).

Parameters

Type	Name	Default	Description
Boolean	ascending	true	Set to true if ascending order, otherwise order is descending

Connectors

Type	Name	Description
input RealInput	u[nin]	Connector of Real input signals
output RealOutput	y[nin]	Sorted vector
output IntegerOutput	yIdx[nin]	Indices of the sorted vector with respect to the original vector

Modelica definition

block SortWithIndices "Sort elements of input vector in ascending or descending order" extends Modelica.Icons.ObsoleteModel; parameter Integer nin( final min=0)=0 "Number of input connections"; parameter Boolean ascending=true "Set to true if ascending order, otherwise order is descending"; Buildings.Controls.OBC.CDL.Interfaces.RealInput u[nin] "Connector of Real input signals"; Buildings.Controls.OBC.CDL.Interfaces.RealOutput y[nin] "Sorted vector"; Buildings.Controls.OBC.CDL.Interfaces.IntegerOutput yIdx[nin] "Indices of the sorted vector with respect to the original vector"; equation (y, yIdx)=Modelica.Math.Vectors.sort(u, ascending=ascending); end SortWithIndices;