solid-state transformer

The 1968 GE Patent That Founded Solid-State Transformer Technology

May 27, 2026 · Power Electronics

4 sources US Patent 3,517,300 filed at GE Schenectady in 1968 by William McMurray. Original motivation: 16.66 Hz European locomotive traction transformer weight reduction

From 8220Electronic Transformer8221 to 8220Intelligent Universal Transformer8221 A Naming History of the Solid-State Tra

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

May 24, 2026 · Power Electronics

4 sources The solid-state transformer has carried four different names across 50 years—electronic transformer, PETT, IUTS—still used interchangeably in 2026.

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

May 23, 2026 · Harmonics (THD)

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 instead.

ABB8217s 2011 PETT on Swiss Federal Railways Was the First Solid-State Transformer in Revenue Rail Service

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

May 23, 2026 · News

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

When the Transformer Is Also the Reactive Power Compensator: How

May 22, 2026 · Power Electronics

4 sources MIT 2024 research identifies AI accelerator loads drawing reactive power beyond what conventional transformers supply; solid-state transformers fulfill both roles.

The Federal R038D Investment Ecosystem Under the US Solid-State Transformer Industry ARPA-E DOE OE NSF FREEDM and Why It

The Federal R&D Investment Ecosystem Under the US Solid-State

May 12, 2026 · Analysis

4 sources ARPA-E, DOE Office of Electricity, and NSF FREEDM funded the R&D behind every commercial US SST, including the Georgia Tech work acquired by Eaton in August 2025.

Solid-State Transformer End-of-Life: Why Recycling MPPF Capacitors and SiC Devices Is Harder Than Recycling Iron-Core Transformers

May 9, 2026 · Power Electronics

4 sources MPPF capacitors and SiC devices in SSTs need specialized processing to recycle -- a gap that undercuts SST sustainability claims as commercial deployments scale up.

Solid-State Transformers for Direct Offshore Wind Turbine Grid

May 6, 2026 · Power Electronics

4 sources Conventional offshore wind chain: turbine iron-core + inter-array AC + offshore substation + HVAC/HVDC to shore, 4-8% losses. SST architecture: 3.3 kV SiC MOSFETs, 98.1% peak efficiency, ~€46,500/MW…

Wolfspeed8217s 200mm Silicon Carbide Wafer Capacity Is the Single Biggest 2026 Bottleneck on Solid-State Transformer Pro

Wolfspeed’s 200mm SiC Wafer Capacity Is the Biggest 2026 Bottleneck for Solid-State Transformers

April 22, 2026 · Analysis

4 sources Wolfspeed Mohawk Valley fab (Marcy NY) opened April 2022, world's first 200mm-only SiC device fab. Mohawk Valley capacity ~20% utilization mid-2024, target 25% YE 2024, full utilization 2026

Power Transformer Lead Times of 128 Weeks Are Driving the 2025

April 20, 2026 · Analysis

3 sources Wood Mackenzie Q2 2025 survey: 128-week lead times for power transformers, 144 weeks for GSUs. 2025 supply deficits: ~30% for power transformers, ~10% for distribution transformers

Stories about solid-state transformer (27)