Thermal Chain

Purpose

Thermal impedance implemented as RC chain

Library

Thermal / Components

Description

This component implements a thermal RC chain of variable length. Using the elements of the vectors provided in the component parameters Thermal resistances and Thermal capacitances a subsystem is built as shown in Fig. 277. The thermal capacitor C1 is connected to the terminal marked with a dot.

../../_images/thermalchain_schema.svg — Fig. 277 Thermal chain RC network schematic

Parameters

Thermal resistances: A vector containing the values of the thermal resistors R1 … Rn, in \((\mathrm{K}/\mathrm{W})\).
Thermal capacitances: A vector containing the values of the thermal capacitors C1 … Cn, in \((\mathrm{J}/\mathrm{K})\).
Initial temperature: A scalar value specifying the initial temperature of all thermal capacitors at simulation start, in degrees Celsius \((^\circ\mathrm{C})\). If left blank or if the value is nan, PLECS will initialize the value based on a thermal “DC” analysis, see Temperature Initialization.