Advanced HIL Testing in Marine Electrical Power Systems
In today’s rapidly evolving marine industry, the shift toward electric propulsion, onboard energy storage, and digitally controlled power systems demands advanced validation tools that go beyond traditional simulation. HIL testing—and more specifically, Power Hardware-in-the-Loop (PHIL)—has become essential for ensuring the performance, safety, and reliability of complex marine electrical systems. Impedyme, a pioneer in Combined HIL and Power (CHP) solutions, offers a cutting-edge FPGA-based platform that enables real-time testing of propulsion controllers, inverters, and energy storage systems under realistic load conditions. By integrating technologies like motor emulation, inverter testing, and dynamic impedance analysis, Impedyme provides marine engineers with the ability to simulate, stress-test, and optimize shipboard power systems—all from a controlled lab environment.
Why Choose Impedyme for Marine HIL Testing & Power HIL / PHIL?
Impedyme, as a pioneer and leading expert in HIL testing and Combined HIL and Power (CHP) solutions, offers state‑of‑the‑art FPGA‑based real‑time simulation platforms specially engineered for marine electrical power systems. In the marine domain—where electric propulsion, onboard generation, and battery energy storage converge—impedance accuracy and stability are critical. Impedyme’s CHP platform delivers:
- Ultra‑fast FPGA simulation at sub‑µs time‑steps to capture high‑frequency switching and PWM behavior with <1 % error
- Seamless integration of Motor Emulator and Inverter Testing through Power Hardware‑In‑the‑Loop (PHIL) setups, enabling full power-level testing
- High‑fidelity impedance measurement and instability analysis, vital for marine distribution systems under fault and dynamic load conditions
Applications: Marine Use Cases for Combined HIL & PHIL
1.Electric Propulsion & Motor Emulator Integration
Simulate various motor types (synchronous, induction, PM) and test real inverters with Motor Emulators that behave like sea-churning motors.
2. Inverter Testing under Load
Use PHIL to drive marine inverters with actual load current and voltage—ideal for validating switching behavior, efficiency, and fault tolerance.
3. Battery Energy Storage Systems (BESS)
Test battery management systems under real charge/discharge cycles. Trigger faults, measure thermal response, and optimize dispatch logic—all virtually.
4. DC Marine Grids
Test interactions between rectifiers, inverters, and loads across multi-zone ship power networks with impedance stability monitoring.
What is HIL Testing in Marine Applications?
Hardware‑In‑the‑Loop (HIL) testing brings together real control hardware—such as marine propulsion controllers or converter units—with virtual models of the surrounding power system to validate behavior before shipboard deployment. In marine settings:
- Real-time models simulate the electrical “plant” of propulsion drives, generators, and distribution buses
- The physical device under test interacts with these models, creating a closed-loop test environment
- By leveraging Power HIL (PHIL), actual voltage and current are fed through the DUT for complete Inverter Testing and Motor Emulator integration
This allows safe experimentation with extreme scenarios—fault injection, load transients, power swings—without risking expensive marine hardware.
Key Features of Impedyme’s FPGA‑Based CHP Platform
Impedyme’s FPGA-based Combined HIL and Power (CHP) platform stands at the cutting edge of HIL testing technology, offering unmatched precision and performance for marine electrical systems. At its core, the platform utilizes ultra-fast Field-Programmable Gate Arrays (FPGAs) to achieve sub-microsecond simulation times, enabling highly accurate real-time modeling of complex power electronics, such as marine inverters and propulsion drives. This speed is essential for capturing high-frequency switching events, dynamic loads, and non-linear behaviors—factors that traditional CPU-based simulators often miss. What sets Impedyme apart is its seamless integration of Power Hardware-in-the-Loop (PHIL), where actual voltage and current are fed through the device under test (DUT), allowing engineers to conduct full-scale inverter testing and motor emulator evaluations in a lab environment that mimics real marine operating conditions.
The system also supports dynamic impedance measurement and real-time instability analysis, which are critical for ensuring the reliability and safety of shipboard electrical distribution networks. With flexible model integration from tools like MATLAB Simulink and modular PHIL cabinets that eliminate the need for external chillers, Impedyme delivers a scalable, high-performance platform tailored to the rigorous demands of modern marine electrification.
