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40 results on '"Zhabelova, Gulnara"'

2. Towards an open model for data center research

Author

Zhabelova, Gulnara, Vesterlund, Mattias, Eschmann, Sascha, Vyatkin, Valeriy, Flieller, Damien, Luleå University of Technology, RISE SICS North, National Institute of Applied Sciences - Strasbourg, Department of Electrical Engineering and Automation, Aalto-yliopisto, and Aalto University

Subjects
Cooling tower, Server, Microgrid, Data center, Smart grid, Cooling, Chiller, CRAH, Model
Abstract

Data centers are important players in the energy infrastructure. Aiming at addressing environmental challenges, large data centers such as Facebook, Google, Yahoo, etc., are increasing share of green power in their daily energy consumption. Such trends drive research into new directions, e.g. sustainable data centers. The research often relies on expressive models that provides sufficient details however practical to re-use and expand There is a lack of available data center models that capture dynamics of the facility from the CPU to the cooling tower. It is a challenge to develop a model that allows to describe complete data center of any scale including its connection to the grid. This paper proposes such a model building on existing work. The challenge was to put the pieces of data center together and describe dynamics of each element so that interdependences between components and parameters are captured correctly and in sufficient details. The proposed model was used in the project "Data center microgrid integration" and proven to be adequate and important to support such study.

Published
2018

3. A Comprehensive Model of Data Center

Author

Zhabelova, Gulnara, Vesterlund, Mattias, Eschmann, Sascha, Berezovskaya, Yulia, Vyatkin, Valeriy, Flieller, Damien, Department of Electrical Engineering and Automation, RISE SICS North, National Institute of Applied Sciences - Strasbourg, Luleå University of Technology, Aalto-yliopisto, and Aalto University

Subjects
microgrid, model, cooling, chiller, cooling tower, server, data center, smart grid, CRAH
Abstract

Aiming at addressing environmental challenges, large data centers, such as Facebook, Google, and Yahoo, are increasing share of green power in their daily energy consumption. Such trends drive research into new directions, e.g., sustainable data centers. The research often relies on expressive models that provide sufficient details, however, practical to re-use and expand. There is a lack of available data center models that capture internal operating states of the facility from the CPU to the cooling tower. It is a challenge to develop a model that allows to describe complete data center of any scale including its connection to the grid. This paper proposes such a model building on the existing work. The challenge was to put the pieces of data center together and model behavior of each element so that interdependencies between components and parameters and operating states are captured correctly and in sufficient details. The proposed model was used in the project “Data center microgrid integration” and proven to be adequate and important to support such study.

Published
2018

4. TORUS

Author

Sinha, Roopak, primary, Dowdeswell, Barry, additional, Zhabelova, Gulnara, additional, and Vyatkin, Valeriy, additional

Published
2018
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10. Towards an Open Model for Data Center Research: from CPU to Cooling Tower

Author

Zhabelova, Gulnara, Vesterlund, Mattias, Eschmann, Sascha, Vyatkin, Valeriy, Flieller, Damien, Zhabelova, Gulnara, Vesterlund, Mattias, Eschmann, Sascha, Vyatkin, Valeriy, and Flieller, Damien

Abstract

Data centers are important players in the energy infrastructure. Aiming at addressing environmental challenges, large data centers such as Facebook, Google, Yahoo, etc., are increasing share of green power in their daily energy consumption. Such trends drive research into new directions, e.g. sustainable data centers. The research often relies on expressive models that provides sufficient details however practical to re-use and expand. There is a lack of available data center models that capture dynamics of the facility from the CPU to the cooling tower. It is a challenge to develop a model that allows to describe complete data center of any scale including its connection to the grid. This paper proposes such a model building on existing work. The challenge was to put the pieces of data center together and describe dynamics of each element so that interdependencies between components and parameters are captured correctly and in sufficient details. The proposed model was used in the project “Data center microgrid integration” and proven to be adequate and important to support such study.

Published
2018
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19. SysGRID: IEC 61850 and IEC 61499 standard based engineering tool for smart grid automation design

Author

Yang, Chen-Wei, Zhabelova, Gulnara, Vyatkin, Valeriy, Yang, Chen-Wei, Zhabelova, Gulnara, and Vyatkin, Valeriy

Abstract

The so called Smart Grid is said to be distributed in nature with an accompanying control architecture which is made up of a heterogeneous network of controllers communicating in a peer-to-peer manner. The paper proposes a novel computer-aided model-based system engineering process for the design of a Smart Grid applications from the initial design specification through to the validation of the control system and hardware deployment. The process is supported by the SysGRID tool, which plays the roles of a system configurator and device configurator adopted from the International Standard IEC 61850. SysGRID supports system-level design of automation logic in the form of function block networks compliant with the international standard IEC 61499. The capabilities of SysGRID are demonstrated through the process of designing a distributed protection application based on IEC 61850 and the resultant validation process in a close-loop co-simulation., License fulltext: CC BY

Published
2014
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40. Cosimulation Environment for Event-Driven Distributed Controls of Smart Grid.

Author

Yang, Chia-han, Zhabelova, Gulnara, Yang, Chen-Wei, and Vyatkin, Valeriy

Abstract

This paper proposes a cosimulation environment for “hardware in the loop” or “software in the loop” validation of distributed controls in a Smart Grid. The controls are designed using model-driven engineering with the IEC 61499 Function Block architecture. These are connected with plant models, for example, in Matlab/Simulink, through communication channels such as UDP or TCP sockets. This solution enables multi-closed-loop plant-controller simulation. The communication between plant and controller is event-driven. In order to perform a realistic simulation, the proposed solution takes into account computation and communication delays on the controller side in Function Blocks and compensates model time on the plant side in Matlab model accordingly. Causality and accuracy of the method have been formally addressed. This approach has been tested and demonstrated with several Smart Grid-related examples. [ABSTRACT FROM PUBLISHER]

Published
2013
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