| Abstract |
An automated modular test bench for electric drives and loads has been developed to analyse the
behaviour and to extract electrical and mechanical parameters. Actually it allows to measure DC
motors. The following three analysing functions to compute characteristic curves are actually
available: torque as a function of the phase current; torque as a function of speed; efficiency as a
function of torque separately for the electrical motor, its drive and both together. For a passive torque
analysis, the following functions have been implemented: static and dynamic friction torque, inertia,
torque as a function of position. Every part of the hardware is designed and connected to the rest of
the test bench in a modular way. The software is written in a modular way in order to be able to
integrate easily new hardware components. Each user’s working directory includes the configuration
settings and results of the measurements. The modular structure of soft- and hardware allows future
extensions for motors of another type like synchronous and induction motors, sensorless DC or
stepper. The actual state of the project provides an interesting education tool and might be adapted
for industrial purposes. |
