APPLICATION NOTE

Testing with Power Hardware in the Loop Capabilities 

Optimize Your Grid-Tied Testing with Power-Hardware-in-the-Loop (PHIL)
As grid-connected energy systems become more complex, the need for accurate, real-time testing methods is growing. Power-Hardware-in-the-Loop (PHIL) testing is emerging as a critical tool for engineers and developers working on electric vehicles, renewable energy systems, microgrids, and more. PHIL enables closed-loop testing by connecting real-time simulations with physical hardware through power amplifiers. This allows you to test control algorithms, validate inverter behavior, and simulate power disturbances—all without the risk or expense of full-scale field testing.

In this appnote, you'll learn:

•    Key components of a PHIL test setup
•    How to select a power amplifier with optimal bandwidth, current capacity, and 4-quadrant operation
•    Why galvanic isolation and low-latency feedback loops matter
•    How PHIL testing accelerates testing to grid-tied standards like IEEE 1547.1 and UL 1741

Whether you're testing grid-tied inverters, electric drives, or smart grid controllers, discover how using AC Power Sources, Grid Simulators or Loads with PHIL capabilities can help you achieve your goals.