The Problem in Detail
An initial G5/5 study identified harmonic non-compliance at multiple orders. Parallel resonances at the 18th, 53rd and 88th harmonics amplified inverter-driven distortion into unacceptable voltage levels.
Finding the Solution
Validation confirmed the issue and refined the severity of harmonic distortion at key orders. A bespoke C-type passive harmonic filter was designed to target the identified resonance points and modify the site impedance profile.
Results
Impedance peaks were reduced, lowering harmonic voltage distortion. Post-installation monitoring confirmed full compliance with G5/5.
What that means for the project
Validation enabled a targeted solution, avoiding unnecessary over-engineering. The site achieved compliance while maintaining efficient operation.
Harmonic Filtering for Battery Energy Storage Systems BESS
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