asteroza + voltage   14

Protecting the power grid: Advanced plasma switch for more efficient transmission -- ScienceDaily
low pressure, high voltage helium gas breakdown behavior for a plasma switch demonstrates 100 KV, might be able to do 300KV
inverter  high  voltage  DC  AC  conversion  plasma  switch  physics  research  technology  electricity  long  distance  transmission  hardware  electronics 
august 2018 by asteroza
AKHAN Technologies, Inc.
Possible alternative to silicon carbide or gallium nitride based IGBT's?
diamond  semiconductor  high  voltage  materials  science  research  technology  electronics  IGBT  Delicious 
november 2014 by asteroza
ABB develops complete system solution for 1,100 kV HVDC power transmission
Wow, 1100kV HVDC long range power transmission is a reality now, though terrestrial at the moment...
HVDC  high  voltage  long  distance  transmission  power  line  ABB  UHVDC  DC  Delicious 
september 2014 by asteroza
ClearSign Combustion Corporation
Interesting combustor tech, that uses a high E field to manipulate flame ions, rather than trying to move to a plasma combustor and it's associated energy penalty. Marked as a means of normalizing the heat in a flame so you don't get hot spots that produce NOx or cold spots that have incomplete combustion.
ion  control  technology  electric  electrodynamic  shape  combustion  research  manipulation  combustor  flame  field  clean  voltage  high  burn  Delicious 
october 2013 by asteroza
Hitachi Drives PM Motor at Low Speed Without Position Sensor -- Tech-On!
Interesting trick of measuring coil inductance via electromotive voltage change to detect permanent magnet rotor position in a BLDC motor without a dedicated position sensor.
rotor  position  control  monitoring  speed  DC  sensorless  BLDC  brushless  detection  permanent  voltage  inductance  low  magnet  Delicious 
april 2013 by asteroza
Twin Creeks Technologies - Hyperion
Apparently these guys have a proton accelerator that operates at both high voltage and current, approximately 10x better than current proton accelerators (for what I assume are semiconductor applications...). Useful for making thin wafers for semiconductors, but the proton accelerator part is more interesting.
silicon  wafer  lamina  exfoliation  production  manufacturing  technology  research  high  current  voltage  energy  proton  accelerator  Delicious 
march 2012 by asteroza
Copper hexacyanoferrate battery electrodes with long cycle life and high power : Nature Communications : Nature Publishing Group
High cycle durability cathode material, if matched with a hydrated potassium ion aqueous electrolyte. Still searching for a suitable anode though. May be suitable for grid energy storage due to ease of manufacturing and cost.
copper  hexacyanoferrate  crystalline  crystal  nanoparticle  nanocrystal  high  voltage  cathode  electrode  materials  science  research  technology  nanotechnology  energy  storage  battery  chemistry  Delicious 
december 2011 by asteroza
.:. Hyper Solar .:.
I think they are basically trying to sell a thin film prismatic lens array with spectrum waveguiding as an aftermarket upgrade to existing solar PV systems. Wait, now they are doing photoelectrochemical hydrogen production with the intent of synthetic natural gas production? Seems they are close to the magical 1.23V open circuit voltage needed for direct solar hydrogen production.
thin  film  optical  solar  concentrator  lens  array  CSP  CPV  addon  hardware  green  energy  PV  photonic  light  routing  separation  photoelectrochemical  nanostructure  artificial  photosynthesis  hydrogen  synthetic  fuel  methane  gas  production  materials  science  research  technology  nanotechnology  direct  high  voltage  cell  STG  Delicious 
february 2011 by asteroza

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