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Real time implementation of STATCOM to analyze transient and dynamic characteristics of wind farm

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Authors
Sattar, A.
Al-Durra, A.
Muyeen, S.M.
Date
2011
Type
Conference Paper

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Sattar, A. and Al-Durra, A. and Muyeen, S.M. 2011. Real time implementation of STATCOM to analyze transient and dynamic characteristics of wind farm, in Proceedings of the 37th Annual Conference on IEEE Industrial Electronics Society (IECON), Nov 7-10 2011, pp. 3742-3747. Melbourne, Vic, Australia: IEEE.
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IECON Proceedings (Industrial Electronics Conference)
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Department of Electrical and Computer Engineering
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© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Abstract

In this paper, a grid connected wind farm with a static synchronous compensator (STATCOM) is modeled in Real Time Digital Simulator (RTDS) environment to analyze its dynamic and transient characteristics in real system. This work is also a part of future power hardware-in-loop (PHIL) test and therefore, individual components are models considering practical viewpoints. Wind turbines and generators of a wind farm, power grid, and control system are realized in the large time-step main network. However, 2-level voltage source converter based STATCOM is modeled in RTDS small time-step environment to adapt with higher switching frequency, where interface transformer is used to link the different time step sub-networks. Suitable control strategy for STATCOM is developed to augment the stability of wind farm considering that capacitor connected at the terminal of wind generator is reduced up to certain percentage. Option for integrating anemometer for dynamic characteristics analysis, difficulties of STATCOM switching schemes for implementing PHIL testing in RTDS environment are discussed. Results are compared with Laboratory standard power system software PSCAD/EMTDC and the advantages of using RTDS in dynamic and transient characteristics analyses of wind farm are also demonstrated clearly.