Please use another Browser

It looks like you are using a browser that is not fully supported. Please note that there might be constraints on site display and usability. For the best experience we suggest that you download the newest version of a supported browser:

Internet Explorer, Chrome Browser, Firefox Browser, Safari Browser

Continue with the current browser

Siemens presents new technology for converter stations

The advantage of the converters developed by Siemens also lies in the high availability it provides for power transmission. The full bridge technology makes it possible to “carry on working” through line faults. The new technology allows faults on an overhead DC line to be resolved within the converter, which keeps the fault and its repercussions to a minimum. The basic principle is that faults in the grid must be rectified as quickly as possible to prevent them from spreading. Another advantage is what is known as “black start capability”. This refers to the ability to supply a part of the grid with electricity again following a power failure, for example, and thus avoid longer outages. The insulated gate bipolar transistors (IGBTs) used by Siemens can also act as a generator to help a grid segment that has lost power to recover autonomously, so they are also black start-capable. In general, HVDC offers many more fundamental advantages compared to AC transmission: the transmission capacity can be better controlled and losses on overhead lines are lower than with AC. 
“The full bridge technology resolves faults extremely quickly and can reliably prevent grid faults from spreading to a blackout,” states Jan Mrosik, CEO of Siemens’ Energy Management Division. “With this innovative development, Siemens is providing the technology needed to successfully expand the grid and thus also ensure the success of the transition to a new energy mix.”
ULTRANET is a joint-venture project between Amprion and TransnetBW, and forms the southern part of one of the three planned HVDC corridors between northern and southern Germany. The connection covers a distance of 340 kilometers, from Osterath in North Rhine-Westphalia to Philippsburg in Baden-Württemberg. 
HVDC technology is the first choice for the transmission of large volumes of energy across long distances with minimal losses. In Germany, electricity from remote offshore wind farms can be efficiently fed into the electricity supply network on-shore via HVDC. HVDC enables grids that use different frequencies to be reliably connected together and stabilized. As a transnational grid connection, HVDC permits the targeted exchange of power between separate countries or states.
Demand for HVDC is growing rapidly. The past 40 years have seen HVDC connections with a total capacity of more than 100 GW (equivalent to 100 large-scale power stations) installed world-wide. In this decade alone, Siemens estimates that a further 270 GW will be added to this total. It also estimates that the HVDC market will virtually double within five years from the current €3 billion p.a. Siemens has implemented more than 40 HVDC projects world-wide to date, one-fourth of these in China. The total amount of electricity that flows via these HVDC connections is comparable to the average electricity consumption of industrial countries such as Spain or Italy. 
Siemens Energy Twitter

Follow us on Twitter

Siemens Energy is one of the world’s leading energy technology companies. The company works with its customers and partners on energy systems for the future, thus supporting the transition to a more sustainable world. With its portfolio of products, solutions and services, Siemens Energy covers almost the entire energy value chain – from power generation and transmission to storage. The portfolio includes conventional and renewable energy technology, such as gas and steam turbines, hybrid power plants operated with hydrogen, and power generators and transformers. More than 50 percent of the portfolio has already been decarbonized. A majority stake in the listed company Siemens Gamesa Renewable Energy (SGRE) makes Siemens Energy a global market leader for renewable energies. An estimated one-sixth of the electricity generated worldwide is based on technologies from Siemens Energy. Siemens Energy employs more than 90,000 people worldwide in more than 90 countries and generated revenue of around €27.5 billion in fiscal year 2020.

Read more


Press Office

Siemens Energy AG