Power Hardware-in-the-Loop (PHIL) testing involves connecting real power hardware to the simulated network in a closed loop.
User support and guidance for smoother experiment setup:
We have the strongest support program in the industry and are committed to equipping our users to build stable, valid PHIL simulations and interfaces. Users have access to a report detailing our in-house PHIL experiments, the amplifier selection process, interface methodology, stability, and delay.
Our engineers have worked alongside amplifier manufacturers to create custom-built interface models which minimize PHIL delays. With options to connect the simulation to the amplifier via an Aurora digital link, creation of the PHIL interface is much more straightforward and less expensive for the user. Refer to the section below for details on digital interface hardware requirements.
PHIL requires a third-party four quadrant amplifier, which can both source and sink real and reactive power, to be placed between the real-time simulator and the power device being tested. There are many amplifiers available with varying power ratings, bandwidth, response time, harmonic distortion, and input/output impedances – the amplifier should be selected carefully based on the experimental requirements.
The RTDS Simulator has been successfully used alongside a large variety of four quadrant amplifiers.
RTDS Technologies has collaborated with manufacturers of four-quadrant amplifiers to develop custom-built digital interfaces via the Aurora protocol. Using a direct digital interface eliminates the need for analogue I/O cards in the PHIL interface, decreasing loop delays and increasing ease of use in PHIL work. A fibre cable is used to directly connect the central RTDS Simulator processing hardware to the amplifier.