When developing electrical equipment, testing the integration with the rest of the system is rarely possible due to limited availability, high cost, or safety considerations. For example, it usually is impossible to connect to the power grid when testing renewable energy integration. When testing electric powertrain components, the electric motor or battery pack may not be ready. One cannot reproduce extreme and fault conditions with field testing. Therefore, engineers use Power HIL testing to thoroughly test power equipment under typical and fault conditions by connecting to a virtual electrical plant.
Power HIL is a technique in which electrical equipment is incorporated into an electrical simulation through its electrical power interface. A power amplifier creates the electric power interface with the equipment. The actual and simulated interfaces are synchronized via a high-end real-time simulation.
Learn more about the concept of Power HIL in this video.