The University of Auckland

Project #39: An automated test rig for IPT systems

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Description:

As power levels increase for electric vehicle charging it becomes more difficult to perform high power tests accurately and safely. Due to this reason, a motorized movement rig, which can be controlled externally withdata capture and analysis is required so that users do not need to be exposed to fields in operation or connect mutiple currents and voltage probes after each movement.

This project is to build an automated test rig for testing IPT systems suitable for EV charging and a data collection system for capture and display. The test system needs to be able to reposition the ground side system laterally to simulate parking misalignment of the electric vehicle and evalaute the impact. The goal is to start to build up a working system that is able to perform coupling, efficiency, and leakage flux measurements remotely, using as a starting point an existing manually operated commerical test bench and previous data collection . The base of this system which will be automated needs to be made of a non-metallic material so it does not interfere with magnetic fields and will be placed below the existing height adjustment system which simulates the vehicle.  

The existing vehicle rig also needs modifications to comply with recommended practices so a steel sheet needs to replace the existing aluminium sheet, and provisions will need to be made for attaching peripheral devices such as thermal cameras, voltage, current and flux probes which will feed back into a data collection system.

Outcome:

The outcome of this project is a system that can automatically move the ground assembly in an EV charging system laterally while capturing data for display. Furthermore the system will need to be able to move with 1 mm accuracy and have provisions for computer control through USB. The students will need to demonstrate that they have the ability to use the system to perform some coupling measurements once the system is complete and compare this against simulated performance (which various PhD students can provide about such systems).

Ideally, a series of power tests should also be performed at multiple positions using the rig.

Prerequisites

None

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Lab allocations have not been finalised