Siemens Energy presents new control system for industrial steam turbines

The TURLOOP control system, with global sales of more than 400 systems to date, provides Siemens Energy Service with a successful automation system for industrial steam turbine applications. To supplement this, TURLOOP CS was developed as a compact, budget variant.

The system platform is based on proven Simatic S7 standard components, allowing flexible use for industrial steam turbines including extraction turbines with up to two extractions and irrespective of whether these are used as generator, compressor or pump drives. Further high performance features of TURLOOP CS include provision for up to five configurable process controls and a maximum of eight final control elements with position controllers. The new control system also implements limit controllers for generator load, inlet pressure and backpressure, as well for extraction and wheel chamber pressure. Linearization curves can be parameterized for all final control elements. The system also permits automatic startup of the turbine and runup to nominal speed, while distinguishing between cold, warm and hot starts.

The system features on-board two-channel speed measurement for eddy-current sensors. TURLOOP SMM-DP speed measurement allows connection of all standard eddy-current sensors and proximitors, as well as interfacing with electronic overspeed protection systems via an adapter module. Where eddy current sensors are used, continuous monitoring of gap between speed sensor and pulse wheel is possible. Speed actual values are transmitted to the central computing unit fast and error-free along a PROFIBUS link.

Parameterization menus are used to adapt the system to the turbine via a 12-inch touchscreen, this also permitting comfortable system operation during turbine operation. Customer designations and tags from standard identification systems can be stored and displayed in the system. No additional software or hardware is required here for parameterization.

Use of standardized and tested hardware and software ensures operating safety and reliability. Parameterization errors are detected, thus preventing “impossible” configurations. Self-diagnostic features are integrated in the control system. Provision is also made for backup of configuration data to a USB drive.

Power plant service is part of Siemens’ Environmental Portfolio. In fiscal 2009, revenue from the Portfolio totaled about EUR23 billion, making Siemens the world’s largest supplier of ecofriendly technologies. In the same period, our products and solutions enabled customers to reduce their CO2 emissions by 210 million tons.

The full text of the press release and the appropriate press photos can be found in the attached PDF and at: http://w1.siemens.com/press/en/pressrelease/2009/energy_service/ese200912027.htm

The Siemens Energy Sector is the world’s leading supplier of a complete spectrum of products, services and solutions for the generation, transmission and distribution of power and for the extraction, conversion and transport of oil and gas. In fiscal 2009 (ended September 30), the Energy Sector had revenues of approximately EUR25.8 billion and received new orders totaling approximately EUR30 billion and posted a profit of EUR3.3 billion. On September 30, 2009, the Energy Sector had a work force of more than 85,100. Further information is available at: www.siemens.com/energy.

Siemens AG
Corporate Communications and Government Affairs
Wittelsbacherplatz 2, 80333 Munich
Germany
Reference number: ESE200912027
Media Relations: Gerda Gottschick
Phone: +49 9131 18-85753
E-mail: gerda.gottschick@siemens.com
Siemens AG
Energy Sector – Energy Service Division
Freyeslebenstr. 1, 91058 Erlangen, Germany