Data Centres & IT

Data centres, IT infrastructure, demand response

AI Data Centres and Power Quality — A New Category of Grid Disturbance

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AI training clusters create a load type that did not exist when power quality standards were written: synchronised GPU operation producing oscillatory load signatures with 10+ MW/second ramps, harmonic THD exceeding 5%, and simultaneous UPS disconnection risk of 2+ GW in dense data centre corridors. A real Dominion Energy grid event was triggered by a data centre producing a voltage sag at precisely once per second. Three open-access papers from 2025–2026 document the scale of the problem and the mitigation approaches now being required by grid operators.

어메이징 인터내셔널 – Passive vs. Active Harmonic Filter in a Data Center: A Field Comparison

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Passive vs. active harmonic filter comparison at a New Jersey data centre: active filter failed repeatedly at this site, passive Lineator filter installed on the same VFD loads achieved THID below 5% — well within IEEE 519 — and has operated without failure for years. The case presents measured data from both technologies on the same equipment at the same site.

데이터 센터 시운전 사례 연구 (Dranetz)

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High-reliability facilities invest heavily in UPS systems and generators — but these mitigation devices themselves can fail without obvious alarms. Dranetz continuous power monitoring evaluates UPS health at commissioning and throughout service life, identifying degrading performance before a failure causes the protected equipment to lose supply.

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