Modern approaches to developing hardware and software system for operation and emergency control of large-scale power grid A.B. OSAK, A.V. DOMYSHEV, E.Y. BUZINA ESI SB RAS, RUSSIA

Purposes of HSS In the project «Intelligent coordination of operation and emergency control of EU and Russian power grids» (ICOEUR) a new generation hardware and software system (HSS) has been developed to control normal and emergency states of a large-scale power grid. The project is implemented within the Seventh Framework Programme of the European Community (EC) for research and technological development in energy.

Purposes of HSS Grid monitoring and analysis of power grid operation conditions. Automation of operation of power grid using modern techniques, methods and tools. Automation of emergency control of large scale power grid using modern techniques, methods and tools. Intelligent coordination of operation and emergency control of large scale power grid.

Functions of HSS Optimal operation and emergency control of power grid subject to economical conditions using modern methods and information technologies. Increasing efficiency and reliability of operation of interconnected power grids.

Problems of existing tools There are no rigorous tools for monitoring emergency control systems and devices. There are no advanced tools for short-term forecasting. Insufficient reliability of emergency control systems in global scale. Insufficient account of the restructuring processes in the power industry. Insufficient adaptability and harmonization of the existing normative documents with the rules and documents used in power grids in other countries (UCTE, NORDEL, etc.).

1-2. Monitoring and forecasting

3. Existing reliability means Redundancy of controlling devices; Redundancy of data transmission channels; Power standby; Data backup.

3. Reliability problem

3. Software level reliability Ядро Data base HMI Archiving Interconnection with external systems Algorithms Metering and controlling devices Communication drivers Application level Application manager Real time data base

3. Software level reliability Application manager Real time data base #1 Data server #1 Data server #2 Data client #2

Features of HSS architecture

4. Account of the restructuring in PS Division of information by type. Determination of regulations in information exchange between HSS nodes for every information type. Availability of different communication technologies, in particular existing ones in power systems. Introduction of different abstraction levels, allowing development of the universal software modules that are not related to specific communication technologies and data formats.

4. Account of the restructuring in PS Differentiation of transmitted information volumes both by technical (access control) and mathematical (distributed computations) methods. Possibility for artificial accuracy reduction of calculation results to preserve information confidentiality. Possibility to calculate generalized indices required by other participants and to transmit only these indices without source data. Assurance of information transmission in full volume within the confidential areas to enhance system survivability.

5. Adaptability and harmonization Introduction of different abstraction levels, allowing development of the universal software modules that are not related to specific communication technologies and data formats. Development of the algorithm modules universal over different countries. Development of the specialized modules for taking into account local normative documents.

Software platform for HSS We suggest ANARES package as platform for developing HSS software and for integrating with software modules of other participants

5. Conclusion Presented architecture of HSS is scalable and allows further development. Concrete results will be presented in ICOEUR report.

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