A New Selective Harmonic Elimination Method for Wind Farm Using Permanent Magnet Synchronous Generator, Under Wind Speed Change

Date

2011-09-10

Author

Ebadi, Mazdak
Joorabian, Mahmood

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Different types of generators are used in wind farms including Synchronous and Asynchronous generators and Double Fed Induction Generators (DFIG). In Synchronous generator case, a power electronic circuit called a cyclo-converter is used as an interface to connect the generator to network. This circuit uses a DC-AC inverter with controllable switches that implies the proper and fixed amplitude and frequency in the output. This paper proposes a new method to minimize the harmonics amplitude that contains the firing angles control and a three-phase coupling transformer. In this method, 11 firing angles are defined for every bridge in a quarter of cycle. Then all the harmonic amplitudes is calculated as a function of 01 to On. Then an objective function is defined as a complex of unwanted harmonics (except the even harmonics, and triplen harmonics that are eliminated with the coupling three-phase transformer). This objective function is minimized with numerical methods, to find the optimized values of theta(1) to theta(11). All of this calculation are redone for some admissible amounts of V& in a bounded certain range, and some operating points are gained. A neural networked, trained by these operating points, will have the control of firing the switches after that.

Subject Keywords

Firing angles, Harmonic elimination, Inverter, Neural network, Synchronous generator

URI

https://hdl.handle.net/11511/64838

Collections

Department of Electrical and Electronics Engineering, Conference / Seminar

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Citation Formats

M. Ebadi and M. Joorabian, “A New Selective Harmonic Elimination Method for Wind Farm Using Permanent Magnet Synchronous Generator, Under Wind Speed Change,” 2011, p. 115, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64838.