U Line - MapleSim Help

For the best experience, we recommend viewing online help using Google Chrome or Microsoft Edge.

Contact Maplesoft Request Quote

Online Help

All Products Maple MapleSim

Home : Support : Online Help : MapleSim : MapleSim Component Library : Electrical : Analog : Transmission Lines : U Line

ULine

Lossy RC Line

Modelica Standard Library

	Description
	The U Line (or ULine) component implements a lumped, single-ended, RC transmission line. Each segment consists of a resistance connected from the input to the output of the segment and a capacitance connected from the output of the segment to the common terminal. To get a symmetric line, the first resistor is split into two parts; the following schematic shows the construction.

	Equations
	$R = r_{actual} \frac{length}{N + 1}$ $r_{actual} = r (1 + α_{R} (T - T_{ref}))$ $C = c \frac{length}{N}$

Connections

Name	Description	Modelica ID
$p1$	Port 1	p1
$p2$	Port 2	p2
$p3$	Port 3, common terminal	p3
$Heat Port$	Conditional heat port	heatPort

Parameters

Name	Default	Units	Description	Modelica ID
$r$	$1$	$\frac{Ω}{m}$	Resistance per meter	r
$c$	$1$	$\frac{F}{m}$	Capacitance per meter	c
$length$	$1$	$m$	Length of line	length
$N$	$1$		Number of lumped segments	N
$α$	$0$	$\frac{1}{K}$	Temperature coefficient of resistance	alpha
$T$	$293.15$	$K$	Fixed device temperature if Use Heat Port is false	T
$T_{ref}$	$300.15$	$K$	Reference temperature	T_ref
Use Heat Port	$false$		True (checked) means heat port is enabled	useHeatPort

	Modelica Standard Library
	The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

Analog Components

Electrical Library

Transmission Lines

Download Help Document