Group items tagged Desertec - Advanced Concepts Team

DESERTEC Foundation: 091030-01 Formation DII GmbH - 4 views

www.desertec.org/...091030-01-formation-dii-gmbh

solar_energy Desertec

shared by Friederike Sontag on 12 Nov 09 - Cached

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Friederike Sontag on 12 Nov 09

Desertec becomes real... joint venture has just been founded.

<div class="cArrow"> </div><div class="cContentInner">Desertec becomes real... joint venture has just been founded.</div>

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LeopoldS on 12 Nov 09

... and including still all the big names ... wish them good luck!

<div class="cArrow"> </div><div class="cContentInner">... and including still all the big names ... wish them good luck!</div>

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DESERTEC Foundation: Concept - 0 views

www.desertec.org/concept

energy SPS solar power thermal

shared by LeopoldS on 24 Jun 09 - Cached

LeopoldS on 24 Jun 09

this is the project I was referring to in my topic post ...

<div class="cArrow"> </div><div class="cContentInner">this is the project I was referring to in my topic post ...</div>

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First circuit breaker for high voltage direct current - 2 views

new.abb.com/hvdc-grid

technology phy

shared by Luzi Bergamin on 13 Nov 12 - No Cached

LeopoldS liked it

Luzi Bergamin on 13 Nov 12

Doesn't really sound sexy, but this is of utmost importance for next generation grids for renewable energy.

<div class="cArrow"> </div><div class="cContentInner">Doesn't really sound sexy, but this is of utmost importance for next generation grids for renewable energy.</div>

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LeopoldS on 13 Nov 12

I agree on the significance indeed - a small boost also for my favourite Desertec project ... Though their language is a bit too "grandiose": "ABB has successfully designed and developed a hybrid DC breaker after years of research, functional testing and simulation in the R&D laboratories. This breaker is a breakthrough that solves a technical challenge that has been unresolved for over a hundred years and was perhaps one the main influencers in the 'war of currents' outcome. The 'hybrid' breaker combines mechanical and power electronics switching that enables it to interrupt power flows equivalent to the output of a nuclear power station within 5 milliseconds - that's as fast as a honey bee takes per flap of its wing - and more than 30 times faster than the reaction time of an Olympic 100-meter medalist to react to the starter's gun! But its not just about speed. The challenge was to do it 'ultra-fast' with minimal operational losses and this has been achieved by combining advanced ultrafast mechanical actuators with our inhouse semiconductor IGBT valve technologies or power electronics (watch video: Hybrid HVDC Breaker - How does it work). In terms of significance, this breaker is a 'game changer'. It removes a significant stumbling block in the development of HVDC transmission grids where planning can start now. These grids will enable interconnection and load balancing between HVDC power superhighways integrating renewables and transporting bulk power across long distances with minimal losses. DC grids will enable sharing of resources like lines and converter stations that provides reliability and redundancy in a power network in an economically viable manner with minimal losses. ABB's new Hybrid HVDC breaker, in simple terms will enable the transmission system to maintain power flow even if there is a fault on one of the lines. This is a major achievement for the global R&D team in ABB who have worked for years on the challeng

<div class="cArrow"> </div><div class="cContentInner">I agree on the significance indeed - a small boost also for my favourite Desertec project ... Though their language is a bit too "grandiose": "ABB has successfully designed and developed a hybrid DC breaker after years of research, functional testing and simulation in the R&D laboratories. This breaker is a breakthrough that solves a technical challenge that has been unresolved for over a hundred years and was perhaps one the main influencers in the 'war of currents' outcome. The 'hybrid' breaker combines mechanical and power electronics switching that enables it to interrupt power flows equivalent to the output of a nuclear power station within 5 milliseconds - that's as fast as a honey bee takes per flap of its wing - and more than 30 times faster than the reaction time of an Olympic 100-meter medalist to react to the starter's gun! But its not just about speed. The challenge was to do it 'ultra-fast' with minimal operational losses and this has been achieved by combining advanced ultrafast mechanical actuators with our inhouse semiconductor IGBT valve technologies or power electronics (watch video: Hybrid HVDC Breaker - How does it work). In terms of significance, this breaker is a 'game changer'. It removes a significant stumbling block in the development of HVDC transmission grids where planning can start now. These grids will enable interconnection and load balancing between HVDC power superhighways integrating renewables and transporting bulk power across long distances with minimal losses. DC grids will enable sharing of resources like lines and converter stations that provides reliability and redundancy in a power network in an economically viable manner with minimal losses. ABB's new Hybrid HVDC breaker, in simple terms will enable the transmission system to maintain power flow even if there is a fault on one of the lines. This is a major achievement for the global R&D team in ABB who have worked for years on the challeng</div>

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