What is Power Hardware in the Loop?
Power-Hardware-in-the-Loop (PHIL) allows users to perform realistic closed loop tests without the need for testing on a real system. PHIL provides a real-time simulation environment through the exchange of low voltage/current signals that can be employed for the higher power testing required by the Unit Under Test (UUT). To this end, a power amplifier is used in between the UUT and the low-level simulator I/O to provide close-loop feedback between the simulation and the physical UUT. A power amplifier is selected based on their close-loop performance and ability to generate or to sink power.
Why is PHIL important for Testing?
PHIL shortens the design cycle by simulating control algorithms on the Real Time System (RTS), which uses a transient approach that provides instantaneous voltages and currents.
This workflow allows for accurate emulation of a physical power plant and a multitude of loads. The high-fidelity simulation provides the flexibility to apply tests that are not practical on a real testbed which is ideal for testing R&D, inter-operability of loads and prototyping applications, safely.
PHIL is a powerful testing capability for the testing and validation of power components and systems with higher power flow between the UUTs. Ideal applications include testing grid-tied inverters for compliance to IEEE 1547.1, UL1741 and similar global standards.
Key Application Examples
- Aerospace and Defense
- Electric Vehicles
- Electric Motor Drives
- Renewable Energy
- Microgrids, PV inverters, Utility Grid, Wind Turbines
- Marine and Offshore Power Systems
- Industrial Automation and Manufacturing, Robotics
- Universities, Research Labs
Case Study: AZX Series Provides PHIL with Fast Response Time
PHIL Bandwidth with Low Latency < 50 μs
Low latency, fast response time, and high bandwidth is critical for fast and responsive feedback to emulate real-time simulation of PHIL systems.
Our Solution: The All-in-1 AZX Series
AZX Series – AC Power Source and Load with PHIL
The AZX Series optimized for PHIL applications. It has an interface via a low latency, per-phase analog input. This feature amplifies control signals from real-time simulation systems for PHIL testing.
Key Features:
• Modular and Scalable Power
• Widest Operating Envelope
• Extra Current Availability
• Optimized for PHIL
• Built in Voltage, Current and Power Measurements
• Most Flexible Configuration
• 4-Q AC/DC Load Included
Summary
PHIL capability is available on the AZX Series All-in-1 AC/DC Power Source, and GSZ Series Regenerative Grid Simulator, and ELZ Regenerative Load. For additional information, please contact sales@pacificpower.com.
