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Siemens at E-world:
Smart Grid with consulting, decentralized energy management,
network automation and holistic metering solutions
05.01.2012 + + + Siemens Infrastructure & Cities is appearing at this year's E-world energy & water from February 7 to 9, 2012 in Essen, Germany, (Hall 3/3-211).
The focus will be on a consulting and analysis tool for developing a smart grid business strategy, as well as a decentralized energy management system for virtual power
plants. Further key exhibits will include a compact protective device for smart grids and a system for monitoring power supply networks that makes it possible to quickly assess particular network situations. Likewise on show will be a holistic smart metering solution that not only records and processes energy consumption data but also includes billing via SAP interface.
Siemens will present a holistic smart metering solution that combines the AMIS metering and distribution network automation system and the meter data management system EnergyIP. It is a major component in the structure of an intelligent power supply network. In its capacity as a data hub, EnergyIP incorporates existing power provider IT systems via an SAP-certified interface into the smart metering infrastructure. With this power providers can make use of smart metering right across the board – all the way from metering to billing, and from system management to network planning. The energy automation, power quality and multimedia functions were recently integrated. For example the power snapshot analysis is the first smart grid application in the world to provide time-synchronous network information via AMIS smart meters. Power quality measured values supplement this information, with the aid of which network stability and supply security can be improved. Also available are open interfaces for tablet computers or smartphones, via which consumption and energy values can be graphically displayed.
With "Smart Grid Compass" Siemens has developed a consulting and analysis tool aimed at supporting power providers, cities and building operators in the setting up of intelligent energy supply networks. In addition to the strategic advice and know-how available from the Siemens smart grid experts, the emphasis is on the analysis of the existing power system prior to its transformation into a smart grid. The aim is to find the best solution for an intelligent network, and to put it into practice professionally with minimal risks and workable budgets.
On the basis of sophisticated information and communication technology, the decentralized energy management system DEMS from Siemens networks and pools individual distributed power generation sources, in order to control them centrally as a virtual power plant. The system processes all important information such as weather forecasts, currently applicable electricity prices and energy demand. On the basis of such data a schedule for all plants involved is drawn up and monitored. For example, the electrical and thermal loads are predicted, depending on the type of day and the time. The prognosis of power generation from renewable sources is based on weather forecasts and the plant characteristics. The calculated schedule thus minimizes the generating and operating costs of the plants in the virtual power plant interconnection, with the DEMS system considering ecological in addition to economic aspects.
With their minimally dimensioned housings, the protective devices of the Siprotec compact range were developed for use in power distribution systems and in industry, taking up only little space. They are suitable for both main and backup protection of operating equipment in the network. In addition to their protective functions, these devices enable the control, automation and monitoring of processes in energy distribution networks. The field units form the basis for smart grids, because they provide field data for higher-order systems and assume decentralized functions. Various communication interfaces, e.g. in accordance with IEC 61850, and the necessary protocols attend to data exchange with the control center or other systems.
Power supply networks have in recent years been subjected to increasingly heavy loading, frequently approaching the limits of system stability. So as to ensure more reliability in network operation, Siemens has developed the network monitoring system Siguard PDP (Phasor Data Processor). The system supervises the network by means of wide-area monitoring with the aid of synchrophasors and special measured variables, and helps the network operator to quickly assess the current network situations. With only a few measured values from phasor metering points scattered over a wide area, Siguard PDP can provide a picture of the power flows in the network. Effortful and management-intensive imaging of the respective network topology is not required. The system also displays oscillations and transient phenomena in the network without delay and helps the staff in the control centers to assess critical network situations, thereby contributing to the right choice of remedial action.
The joint Resource Optimization and Scheduler (jROS) is a planning tool that provides various algorithms on a common platform, in order to support the tasks of power plant scheduling. In addition to planning the use of energy, these tasks include medium-term optimization of energy trading, taking account of the spot market and the balancing energy requirement. Also of note in the application portfolio are an "intraday schedule" for working out short-term energy trading parameters and the final devising of a practicable and optimal schedule. The jROS planning tool is a component of the Siemens Spectrum Power network control system; it can however also be integrated in other network control systems via defined interfaces, or be used as an independent system.
Siemens will also provide information on user-specific solutions for communication infrastructures in the context of new smart grid applications in medium and low-voltage networks. This includes solutions based on glass fiber networks, broadband powerline carriers and wireless transmission methods. In both medium and low-voltage systems, expansion of existing communication networks is a substantial challenge in the creation of smart grids. Whereas today it is usually only medium-voltage substations and a few unit substations that are incorporated in the power provider communication network, new smart grid applications such as intelligent meters, distribution network automation, demand response or virtual power plants are conditional on a communication network that extends as far as the
consumer.
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Energy-efficient, eco-friendly solutions for setting up intelligent power supply networks (Smart Grids) are part of Siemens’ Environmental Portfolio. In fiscal 2011, revenue from the portfolio totalled nearly EUR30 billion, making Siemens one of the world’s largest suppliers of eco-friendly technologies. In the same period, the company’s products and solutions enabled customers to reduce their carbon dioxide (CO2) emissions by nearly 320 million tons, an amount equal to the total annual CO2 emissions of Berlin, Delhi, Hong Kong, Istanbul, London, New York, Singapore and Tokyo.
The Siemens Infrastructure & Cities Sector (Munich, Germany), with approximately 87,000 employees, offers sustainable technologies for metropolitan areas and their infrastructures. Its offerings include integrated mobility solutions, building and security technology, power distribution, smart grid applications, and low- and medium-voltage products. The Sector comprises the Divisions Rail Systems, Mobility and Logistics, Low and Medium Voltage, Smart Grid, Building Technologies, and Osram AG. For more information, visit
http://www.siemens.com/infrastructure-cities
The Siemens Smart Grid Division (Nuremberg, Germany) supplies power providers and network operators, industrial enterprises, infrastructure elements and cities with products and solutions for intelligent and flexible network infrastructures. To meet growing energy needs, the networks of today and tomorrow must integrate more and more renewable energy sources and ensure bi-directional energy and communication flows. Smart Grids help make it possible to generate and use power efficiently and on demand. For more information, visit
http://www.siemens.com/smartgrid
Download press photo: www.siemens.com/smartgrid/press/pictures/ICSG201112005
Caption:
For the expansion of smart grids Siemens has developed a smart grid solution based on its AMIS system, which covers both smart metering and the automation of distribution networks. In addition, Siemens has for the first time integrated in this application the energy automation, power quality and multimedia functions. The photo shows an iPhone App, which displays AMIS consumption data and provides the option for connecting and disconnecting electrical loads via radio receiver
outlets.
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