How to Reproduce Anti-Islanding Tests Across Laboratories

+ Regenerative AC / Grid Emulator

Reproduce Comparable Island Test Conditions

Cross-laboratory anti-islanding test repeatability begins with establishing the same electrical operating conditions at each test location. Engineers define the distributed energy resource (DER) inverter operating point, grid voltage and frequency, resonant resistance-inductance-capacitance (RLC) settings, and test sequence. The test environment measures residual grid current through the simulated isolation connection and tunes the resonant load to balance active and reactive power. A programmable Power Hardware-in-the-Loop (PHIL) environment allows engineers to configure equivalent nominal RLC conditions at different test locations without manually adjusting physical load components. Integrated resonant RLC autotuning helps establish the required island operating point, while consistent setup and tuning criteria support more comparable test conditions across laboratories.

After confirming the pre-island state, each laboratory opens the simulated grid connection under defined conditions and records island voltage, frequency, current, and inverter clearing-time behavior. Test records can include operating settings, electrical measurements, resonant load conditions, and available waveform results so engineers can compare runs from development and certification environments. These comparisons help distinguish differences in configured test conditions from variations in inverter response. PHIL-based anti-islanding test automation supports consistent execution, automated data formatting, and report generation, reducing manual result handling across repeated tests. Results may still depend on inverter configuration, site conditions, calibration, and measurement uncertainty. This approach supports more consistent anti-islanding testing across laboratories by maintaining repeatable electrical conditions, standardized test procedures, and comparable measurement results.

Cross-Laboratory Island Test Repeatability Solution

Reproducing anti-islanding tests across laboratories requires consistent grid conditions, resonant load settings, and measurements. Keysight regenerative AC / grid emulators integrate Power Hardware-in-the-Loop (PHIL) technology with resonant RLC autotuning to establish controlled island conditions without separate high-power passive load banks. Programmable grid emulation and automated RLC tuning reduce manual setup. PHIL-based test automation coordinates repeatable execution, data acquisition, and report generation. Engineers can compare recorded measurements, clearing times, and documented test conditions to investigate differences across laboratories, supporting consistent DER inverter validation.

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See Block Diagram of Cross-Laboratory Island Test Repeatability Solution

How to Reproduce Anti-Islanding Tests Across Laboratories

Explore Products in Our Cross-Laboratory Island Test Repeatability Solution

SL1201A Scienlab Regenerative AC Emulator, 600 VAC, 63 A, 42 kVA, 3‑Phase

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SL1212A Scienlab Regenerative AC Emulator, 1200 VAC, 32 A, 68 kVA, 3‑Phase

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SL1213A Scienlab Regenerative AC Emulator, 1200 VAC, 65 A, 90 kVA, 3‑Phase

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SL1202A Scienlab Regenerative AC Emulator, 600 VAC, 63 A, 66 kVA, 3‑Phase

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SL1203A Scienlab Regenerative AC Emulator, 600 VAC, 125 A, 130 kVA, 3‑Phase

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