Power Quality

Harmonics (THD) Power Electronics Power Quality Research Solid State Transformers Standards & Compliance

How Solid-State Transformers Solve the IEEE 519 Harmonic Problem

Marin Holt May 25, 2026

4 sources IEEE 519-2022 sets 5% voltage THD limit at utility-customer interface. Conventional MW chargers routinely exceed 5% THD and Read More

Power Electronics Research Solid State Transformers Standards & Compliance

Why the Iron-Core Transformer Has Outlasted Every Replacement

Marin Holt May 24, 2026

4 sources Iron-core transformer technology, unchanged since 1886, has outlasted every solid-state challenger by offering single-step voltage conversion with Read More

Power Electronics Research Solid State Transformers Standards & Compliance

From “Electronic Transformer” to “Intelligent Universal Transformer”: A Naming History of the Solid-State Transformer

Marin Holt May 24, 2026

4 sources The solid-state transformer has carried four different names across 50 years—electronic transformer, PETT, IUTS—still used Read More

Harmonics (THD) Power Electronics Research Solid State Transformers

Why Single-Stage AC-AC Solid-State Transformers Are the Holy Grail —

Marin Holt May 23, 2026

4 sources Single-stage AC-AC solid-state transformers remain lab-only; every commercial SST shipped in 2026 uses the two-stage AC-DC-AC topology Read More

News Power Electronics Solid State Transformers Standards & Compliance

ABB’s 2011 PETT on Swiss Federal Railways Was the First Solid-State Transformer in Revenue Rail Service

Marin Holt May 23, 2026

3 sources ABB PETT pilot on SBB Ee 933 shunting locomotive, mid-2011 deployment. Swiss Federal Office for Transport certification Read More

Power Electronics Power Factor Research Solid State Transformers Voltage & Reactive Power

When the Transformer Is Also the Reactive Power Compensator: How

Marin Holt May 22, 2026

4 sources MIT 2024 research identifies AI accelerator loads drawing reactive power beyond what conventional transformers supply; solid-state transformers Read More

Power Electronics Research Solid State Transformers Standards & Compliance

The DC-Link Capacitor Is the Hidden Failure Mode That Determines

Marin Holt May 21, 2026

4 sources DC-link capacitors are the single biggest lifetime determinant in solid-state transformers. Dielectric degradation and ESR rise Read More

Power Electronics Research Solid State Transformers Standards & Compliance

The Medium-Frequency Transformer

Marin Holt May 20, 2026

4 sources MFT operating frequency 5-100 kHz, commercial sweet spot 10-30 kHz. Conventional silicon-steel cores fail above ~1 kHz Read More

Data Centers Efficiency & Optimization Grid Capacity News Power Electronics Solid State Transformers Voltage & Reactive Power

Eaton Commits S$3 Million for NUS-Led Sustainable Tropical Data

Marin Holt May 20, 2026

3 sources Eaton committed S$3M to the NUS Sustainable Tropical Data Centre Testbed, anchored by a 2.5 MW Read More

Analysis Power Electronics Solid State Transformers Standards & Compliance

Silicon Carbide vs Gallium Nitride: Why Every Medium-Voltage

Marin Holt May 19, 2026

4 sources All commercial medium-voltage SSTs use SiC MOSFETs for 650 V–6.5 kV input stages. GaN is limited to Read More

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