Ruhrgas the Dispatching and Application System DAISY

PSIEnergy Oil & Gas

Ruhrgas The Dispatching and Application System DAISY

The Ruhrgas Pipeline System ruhrgas

Flens- burg including joint, leased and Hamburg joint-venture facilities Emden

Berlin Mün- ster Hanover Essen Leipzig Dresden Cologne Zwickau Natural gas pipeline Frankfurt/ existing Main under design or under construction Waidhaus Underground storage facility Compressor station Saarbrücken Nurem- berg maintenance station delivery station Stuttgart Passau Munich Freiburg 2002 B 426c

Ruhrgas operates a gas transmission The main features of DAISY are: system comprised of 12,800 km of pipe- • SCADA system (PSIControl) line. Diameters of the pipelines range • IT system for gas contract modelling, from 200 mm to 1200 mm and operat- planning and load forecasting (PSI- ing pressures vary between 3 bar and Transport) 100 bar. The transmission infrastructure • communication interfaces for busi- includes 26 compressor stations and 12 ness and process data (PSIComCentre) underground storage facilities. There is a • functions for reporting, alarm proc- total of 85 compressors with a capacity essing and data visualisation of approximately 830 MW. The storage • data interfaces for data transfer be- facilities are capable of storing up to 5 tween the different applications billion m3 of working gas and have a • a complex Oracle database used by withdrawal capacity of 5 million m3/h. the main applications PSI developed the new Dispatching and • tool for online gas grid simulation Information System “DAISY” in order and fuel gas optimisation. to fulfil Ruhrgas’ needs.

PSIEnergy Oil & Gas

The new SCADA system The Hardware Concept The new SCADA application for Ruhr- The DAISY hardware consists of a set of gas includes all classical functions of a Tru64 Unix server pairs for the main SCADA system as well as a number of applications, namely SCADA, contract additional features and communication handling, simulation and the Oracle functionalities. These include: database. • data modelling based on technologi- The dispatching teams use Unix cal objects workstations, each connected to 2 to 4 • extensive functions for cross checking monitors, for the main process supervi- data, supervision and data handling sion and contract handling activities. • integration with the data base of About 25 workstations are connected to PSITransport for contract handling the system. In addition, up to 60 stan- • advanced function for automatic set dard MS Windows PCs are used. point allocation for M &R stations to meet contractual and technical re- Scope of services quirements PSI serves as main contractor for the • complex archive function. implementation of the DAISY system at The user interface has MS Windows Ruhrgas. look and feel with modern display navi- gation technology.

Communication The DAISY system has interfaces for business data communication (Edig@s) and interfaces for process data exchange (standard protocols Tase.2 & IEC870-5). Non-standard communication is imple- PSI Aktiengesellschaft für mented based on XML. Communication Produkte und Systeme der is based on PSI’s PSIComCentre solution. Informationstechnologie Dircksenstraße 42-44 Contract Handling 10 178 Berlin PSI developed a new complex IT appli- Germany cation called PSITransport for contract Tel: +49 30 2801 - 0 handling based on Ruhrgas’ require- Fax: +49 30 2801 - 1000 ments. The system has a contract model- http://www.psi.de ling module that allows for the represen-

tation of different standard contracts for Contact trading (gas purchase, gas sales), trans- PSIEnergy Oil & Gas portation and storage. A formula language allows for the calcu- Dr. Martin Bürgel lation of additional values which are not Tel: +49 30 2801 - 1504 part of the standard contracts. Fax +49 30 2801 - 1011 E-mail [email protected] http://www.psioilandgas.com