SUB-SYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY FOR WIND POWER TRANSMISSION SYSTEMS BASED ON MULTI BAND ADAPTIVE NOTCH FILTERS

Wang Zijian; Gu Ruifeng; Ma Yanfeng; Zhang Xinyu; Zhao Shuqiang

doi:10.19912/j.0254-0096.tynxb.2023-1239

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (11) : 141-152. DOI: 10.19912/j.0254-0096.tynxb.2023-1239

SUB-SYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY FOR WIND POWER TRANSMISSION SYSTEMS BASED ON MULTI BAND ADAPTIVE NOTCH FILTERS

Wang Zijian, Gu Ruifeng, Ma Yanfeng, Zhang Xinyu, Zhao Shuqiang

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Abstract

A sub-synchronous oscillation suppression strategy for wind power transmission systems based on multi band adaptive notch filter （MANF） is proposed. Firstly, based on the mechanism analysis of sub-synchronous oscillation, the installation position of MANF in the rotor measurement converter （RSC） of doubly fed induction generator （DFIG） is determined. Secondly, the DFT identification method optimized by the recursive group harmonic power minimization （RGPM） algorithm is used to design a sub-synchronous oscillation detector, effectively solving problems such as mode mixing. Then, using the windowed sparsity adaptive matching pursuit （SAMP） algorithm, design a MANF that can update the notch frequency in real time based on the input frequency. Finally, the effectiveness of the suppression strategy was verified by comparing with the multi notch notch filter （MNF） and the single notch adaptive notch filter （ANF）. The robustness of the suppression strategy was verified under the conditions of considering different series compensation degrees, wind power partial cutting, and thermal power replenishment power.

Key words

wind turbines / sub-synchronous oscillation / power system stability / sub-synchronous oscillation detector / multi band adaptive notch filter

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Wang Zijian, Gu Ruifeng, Ma Yanfeng, Zhang Xinyu, Zhao Shuqiang. SUB-SYNCHRONOUS OSCILLATION SUPPRESSION STRATEGY FOR WIND POWER TRANSMISSION SYSTEMS BASED ON MULTI BAND ADAPTIVE NOTCH FILTERS[J]. Acta Energiae Solaris Sinica. 2024, 45(11): 141-152 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1239

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