An innovative Hardware-In-the-Loop rig for linear PTO testing

An innovative Hardware-In-the-Loop rig for linear PTO testing

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This paper describes the activities related to the design, manufacturing and commissioning of an innovative Hardware-In-the-Loop test rig for linear cortech sonic-flo gloves Power Take-Off testing.The rig is characterised by a fully coupled architecture in which three electro-mechanical units integrating a ballscrew and an electrical machine can actuate on a linear axis, either as motor or generator.A preliminary mechanical design of the test rig was carried out by identifying the most demanding conditions.The electrical and mechanical designs were assessed through a de-risking simulation of the overall test rig set-up, considering faults between the motors and respective power converters.

The resulting rig setup includes a structure that embeds the three units, an electrical control panel and a control system.The use of electro-mechanical units increases the flexibility of the setup and simplifies the test of extreme conditions such as color touch 7/97 maximum output power or actuation force.Moreover, it allows reusing the power produced by the generating devices, thus reducing operational costs of the tests.The control system integrates a real-time hardware-in-the-loop simulation platform, a supervisory control and data acquisition systems.

Those offer not only the possibility of easily tuning parameters but also testing new control strategies, operational situations, and failures of a power-take-off system in very realistic conditions.