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Rotational Electromechanical Converter

Interface between electrical and mechanical rotational domains

Library

Electrical Elements

Description

The Rotational Electromechanical Converter block provides an interface between the electrical and mechanical rotational domains. It converts electrical energy into mechanical energy in the form of rotational motion, and vice versa. The converter is described with the following equations:

where

VVoltage across the electrical ports of the converter
ICurrent through the electrical ports of the converter
TTorque
ωAngular speed
KConstant of proportionality

The Rotational Electromechanical Converter block represents a lossless electromechanical energy conversion, therefore the same constant of proportionality is used in both equations.

Connections + and – are conserving electrical ports corresponding to the positive and negative terminals of the converter, respectively. Connections C and R are conserving mechanical rotational ports. If the current flowing from the positive to the negative terminal is positive, then the resulting torque is positive acting from port C to port R. This direction can be altered by using a negative value for K.

Dialog Box and Parameters

Parameters Tab

Constant of proportionality K

Constant of proportionality for electromechanical conversions. The default value is 0.1 V/(rad/s).

Variables Tab

Use the Variables tab to set the priority and initial target values for the block variables prior to simulation. For more information, see Set Priority and Initial Target for Block Variables.

Ports

The block has the following ports:

+

Electrical conserving port associated with the converter positive terminal.

-

Electrical conserving port associated with the converter negative terminal.

C

Mechanical rotational conserving port.

R

Mechanical rotational conserving port.

See Also

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