IEC 61400-21-2:2022 Power Quality Testing for Wind Turbines – Test Report Generator

IEC 61400-21-2:2022 supersedes earlier editions and introduces refined measurement protocols, expanded frequency range coverage (up to 9 kHz for interharmonics), stricter uncertainty requirements (<10% for harmonic distortion indices), and enhanced guidance on test conditions (e.g., steady-state vs. transient operating points, grid impedance emulation). The standard mandates synchronized, high-fidelity measurements using class A instrumentation per IEC 61000-4-30 Ed. 3, with mandatory post-processing for spectral analysis, statistical aggregation (e.g., Pst, Plt, harmonic group RMS), and time-synchronized event logging. The Test Report Generator implements these requirements programmatically—automating data ingestion from PQ analyzers, applying standardized calculation routines, validating measurement traceability (e.g., calibration certificates, GPS-synchronized timestamps), and producing auditable, structured reports in XML or PDF formats compliant with Annex B of the standard. Beyond compliance, it enables comparative analysis across turbine models, supports dynamic grid code verification (e.g., ENTSO-E RfG, IEEE 1547-2018), and facilitates digital twin integration by exporting machine-readable PQ datasets with semantic metadata (e.g., IEC 61850-7-4-based PQ data models).