Data Centres & IT | Internationale Power-Quality-Diskussions-Forum

KI-Rechenzentren und Stromqualität – eine neue Kategorie von Netzstörungen

Denis / 8 Mai 2026

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.

Erstaunlicher Intl – Passive vs. Active Harmonic Filter in a Data Center: A Field Comparison

Denis Ruest / 5 Mai 2026

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.

Data Center zu überwachen Verwendung Encore Demand Response Leistung (Dranetz)

Denis / 29 Januar 2013

A 1.2M sq ft New Jersey data centre participating in a demand response program used backup generators to reduce 7 MW of load. Dranetz Encore Series was installed on four 2.5 MW turbines to provide real-time generator performance monitoring — replacing unreliable utility KYZ pulse metering with direct power measurement.

Data Center Inbetriebnahme Case Study (Dranetz)

Denis / 29 Januar 2013

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.