Distributed Accountability and Logging Mechanism for Data Sharing in the Cloud
Saeed Amini1, Md. Tavakoli Bina2, Amin Hajizadeh3

1Saeed Amini, Department of Electrical Engineering, Islamic Azad University, Damghan Branch, Damghan, Iran.
2Mohammad Tavakoli Bina, Department of Electrical Engineering, Islamic Azad University, Damghan Branch, Damghan, Iran.
3Amin Hajizadeh, Department of Electrical Engineering, Islamic Azad University Damghan  Branch, Damghan, Iran.
Manuscript received on March 11, 2014. | Revised Manuscript received on March 15, 2014. | Manuscript published on March 25, 2014. | PP:18-21 | Volume-2 Issue-5, March 2014. | Retrieval Number: E0673032514/2014©BEIESP

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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The WECS is a fixed speed/constant frequency system that is equipped with an induction generator driven by an unregulated wind turbine Although integration of high levels of wind power into an existing transmission system does not require a major redesign, it necessitates additional control and compensating equipment to enable recovery from severe system disturbances. This thesis investigates the use of a Static Synchronous Compensator (STATCOM) along with wind farms for the purpose of stabilizing the grid voltage after grid-side disturbances such as a three phase short circuit fault, temporary trip of a wind turbine and sudden load changes. The strategy focuses on a fundamental grid operational requirement to maintain proper voltages at the point of common coupling by regulating voltage. The DC voltage at individual wind turbine (WT) inverters is also stabilized to facilitate continuous operation of wind turbines during disturbances. The proposed paper is shown that the use of advanced control methods, such as the standard robust control method, in the control system of FACTS could improve their performance.
Keywords: Wind Energy Conversion System (WECS); FACTS; STATCOM,SVC, voltage control, reactive power compensation.