Grid sequence detector based on a stationary reference frame

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URI: https://hdl.handle.net/11556/1634
ISBN: 9781424444328
Publication date
2009
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Abstract
This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid imbalances. The performance of the MAF is mathematically analyzed and a proper selection of the optimal filter's window width is realized. The proposed detector operates in open loop and there is no PI controller to be tuned. Thus, the dynamic response and simplicity is improved compared to other solutions. Performance of the proposed detector is verified through simulation and experiment. It shows very good performance under extreme grid voltage conditions, allowing fast detection of the grid voltage positive sequence (within one grid voltage cycle).
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Grid connected power converters , Grid voltage synchronization , Moving average filter , PLL , Sequence detector , Energy Engineering and Power Technology , Electrical and Electronic Engineering
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Robles , E , Pou , J , Ceballos , S , Gabiola , I & Santos , M 2009 , Grid sequence detector based on a stationary reference frame . in 2009 13th European Conference on Power Electronics and Applications, EPE '09 . , 5279258 , 2009 13th European Conference on Power Electronics and Applications, EPE '09 , 2009 13th European Conference on Power Electronics and Applications, EPE '09 , Barcelona , Spain , 8/09/09 .
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