Transient Stability Enhancement of Wind Farms using Flexible AC Transmission Technology (Comparison of SVC and STATCOM)
Mojtaba Atabakhsh1, Mahmoud Ebadian2, Majidreza Naseh3
1Mojtaba Atabakhsh, Department of Electrical Engineering, Science and Research Branch, Islamic Azad University of South Khorasan, Birjand Iran.
2Mahmoud Ebadian, Department of Electrical Engineering, Science and Research Branch, Islamic Azad University of South Khorasan, Birjand Iran.
3Majidreza Naseh, Department of Electrical Engineering, Science and Research Branch, Islamic Azad University of South Khorasan, Birjand Iran.
Manuscript received on 12 June 2014 | Revised Manuscript received on 19 June 2014 | Manuscript Published on 30 June 2014 | PP: 10-13 | Volume-4 Issue-1, June 2014 | Retrieval Number: L16430531214/14©BEIESP
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© The Authors. 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: Uncontrollable nature of wind power causes using wind turbine induction generators. From the viewpoint of stability, induction generators consume reactive power similar to the induction motor, and it has a negative impact on short-term voltage stability and system voltage profile. This main issue of wind turbines that equipped with doubly fed induction generators (DFIGs) becomes bold in the grid faults. In this thesis, a new solution for uninterrupted operation of wind turbine driving a DFIG has been proposed during fault condition in the grid. A fault current limiter (FCL) is placed in series with the rotor circuit. During fault condition FCL enters a huge solenoid in the rotor circuit to inhabit increasing of current in the rotor circuit. When the fault is cleared the FCL bypasses the solenoid. A static synchronous compensator (STATCOM) and a static VAR compensator (SVC) have been applied for supplying required reactive power in faults and steady states. Capability and modeling accuracy of the proposed method confirmed with simulating a sample power system in MATLAB/Simulink software.
Keywords: FACTS, Wind Power, Transient Stability, Doubly Fed Induction Generators, Power System.
Scope of the Article: Wireless Power Transmission