In intelligent power supply networks – smart grids – the quality of data transmission from digital meters to the power supply company is playing an increasingly important role. To make sure data is smoothly transmitted via lines in the power grid, it must be ensured that this transmission is also possible with equipment and transmission systems from different manufacturers. Siemens has developed the CX1 data transport profile for this purpose, and it is well on its way to becoming the international standard for open, secure, and fault-tolerant data communication via powerline for smart metering in intelligent power supply grids.
The European Committee for Electrotechnical Standardization, CEN/CENELEC, has completed the standardization process with the publication of the CX1 standardization documents CLC/TS 50590 and CLC/TS 52056-8-7. With this step, Siemens has positioned CX1 as the universal international standard for powerline communication (PLC) that can be used independently of frequency band in medium and low-voltage networks.
"With the positioning of our CX1 standard, we are pursuing the goal of supporting the rapid introduction of smart metering technologies in smart grids based on a reliable, economical transmission technology," said Thomas Zimmermann, CEO of the Siemens Smart Grid Solutions & Services Business Unit.
Intelligent power supply grids, also referred to as smart grids, are designed to increase efficiency and to compensate for the highly fluctuating power that is fed from solar, wind, and biogas plants into the existing power supply networks. To accomplish this, a large number of sensors and actuators must be installed in the supply networks and linked using communication technology.
Along with grid sensors that are installed in the grid to record grid status data, smart meters can be used as information and communication gateways in households. In addition to recording energy consumption data, the devices also collect information about network quality and then relay the information to the utility company's energy management system.
This data can then be used to control the power supply grid. Distribution line carrier communication protocols (DLC) such as Siemens CX1 use the existing power lines to transmit information relating to consumption and the grid. For economic reasons, many utility companies choose to use DLC communication protocols to save the additional investment costs associated with providing an additional communications infrastructure.
Developed by Siemens in Austria, CX1 is a communications protocol that is based on spread spectrum modulation, in which multiple frequencies within the same frequency band are used simultaneously to transmit a single signal. This means that interference, which often occurs at certain frequencies, has only a negligible effect on signal transmission. In addition, through automatic routing of the communications links, the communications protocol can handle any change in the physical communication parameters of a low-voltage power supply grid, such as signal attenuation, noise, network disruption and signal coupling, as well as operational changes in network configuration.
No engineering of the communication network is required for CX1, and the protocol offers ample scope for the integration of additional transmission protocols as well as of future smart grid functions, such as the secure transmission of control signals. Furthermore, it can be integrated into existing IEC-protocol-based network automation and energy management infrastructures.
Siemens has implemented the CX1 standard in AMIS, a smart metering solution that is currently being rolled out nationwide by a large Austrian distribution system operator. In what is currently the largest CX1 installation worldwide, more than 150,000 end devices have already been installed in households. Thanks to the extremely high communications availability, the recorded smart metering measurement values are transferred to the control center with an extremely high degree of fulfillment. CX1 is the latest generation DLC communications protocol and is already being used in numerous projects.
For further information on Division Energy Management, please see www.siemens.com/energy-management
Further information on control center solutions is available at
Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is No. 1 in offshore wind turbine construction, a leading supplier of combined cycle turbines for power generation, a major provider of power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2014, which ended on September 30, 2014, Siemens generated revenue from continuing operations of €71.9 billion and net income of €5.5 billion. At the end of September 2014, the company had around 343,000 employees worldwide on a continuing basis.
Further information is available on the Internet at www.siemens.com
Reference Number: PR2015080301EMEN
Mr. Dietrich Biester
Energy Management Division
Tel: +49 (9131) 7-33559
Dietrich Biester | Siemens Energy Management
Waste from paper and pulp industry supplies raw material for development of new redox flow batteries
12.10.2017 | Johannes Gutenberg-Universität Mainz
Low-cost battery from waste graphite
11.10.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
17.10.2017 | Life Sciences
17.10.2017 | Life Sciences
17.10.2017 | Earth Sciences