Dewetron

Analysis of Different Types of Current Transducers at the Measurement on Electric Drive Trains

By:
Posted: 10/14/2014

Abstract

For increasing the efficiency of electric drive trains measurement and testing plays a key role. The requirements to the measurement system concerning hardware (high accuracy, high bandwidth, high sampling rate, isolated high-voltage inputs, etc.) as well as to the software (power calculation for variable frequencies, for DC and AC 1-, 2-, 3- up to 7-phase systems, multiple power calculations, FFT, etc.) are really high. A very important part of the measurement chain for such applications is the current measurement. There are different technologies for measuring the current. The first aim of this article is to determine the difference between an iron-core current clamp, a rogowsky coil, a hall-compensated AC/DC current clamp and a zero-flux current transducer at a measurement of an inverter. The second focus of this article is the analysis of measuring the current between a frequency inverter and a motor of an electric car with and without shielded motor cable.

To continue viewing this content please fill out the form below and become an Automotive IQ member.
Or if you're already a Automotive IQ member, sign in below to download.
Join

By entering in your information and submitting the form, you give the sponsor permission to contact you regarding their product and you agree to our User Agreement, Privacy Policy, and Cookie Policy.

By:
Posted: 10/14/2014