OPTIMIZATION METHOD FOR FREQUENCY REGULATION PARAMETERS OF OFFSHORE WIND POWER BLACK-START BASED ON TRAJECTORY SENSITIVITY ANALYSIS

Liu Bing; Liu Yu; Dai Xiankang; Huang Jiasheng; Jia Xiaohui

doi:10.19912/j.0254-0096.tynxb.2024-1554

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (1) : 521-531. DOI: 10.19912/j.0254-0096.tynxb.2024-1554

OPTIMIZATION METHOD FOR FREQUENCY REGULATION PARAMETERS OF OFFSHORE WIND POWER BLACK-START BASED ON TRAJECTORY SENSITIVITY ANALYSIS

Liu Bing, Liu Yu, Dai Xiankang, Huang Jiasheng, Jia Xiaohui

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Abstract

Driven by the policy of grid parity for wind power, the construction of offshore wind farms in China is accelerating, and large-scale offshore wind farms will become an important power source for local power grids in coastal areas in the future. When using offshore wind power as a black-start power source, significant load disturbances may cause the system frequency to exceed its limit, resulting in the unit shutting down after the protection device is activated, leading to black-start failure. To further enhance the frequency regulation capability of offshore wind power during the black-start recovery process, this paper first uses trajectory sensitivity analysis method to derive the dominant parameters that affect frequency deviation, and then optimizes the dominant parameters to ensure that offshore wind power has sufficient frequency regulation capability during the black-start process. Secondly, by analyzing the relationship between frequency deviation, frequency deadband, and the power capacity of each unit, the feasible parameter boundary to ensure that the active output of the unit does not exceed the limit are derived. A parameter optimization model considering capacity limitation is established, and the optimal parameters are solved using sequential quadratic programming algorithm; Finally, the effectiveness of the optimization method is verified through simulation examples.

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offshore wind farms / frequency stability / constraint optimization / black-start / trajectory sensitivity

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Liu Bing, Liu Yu, Dai Xiankang, Huang Jiasheng, Jia Xiaohui. OPTIMIZATION METHOD FOR FREQUENCY REGULATION PARAMETERS OF OFFSHORE WIND POWER BLACK-START BASED ON TRAJECTORY SENSITIVITY ANALYSIS[J]. Acta Energiae Solaris Sinica. 2026, 47(1): 521-531 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1554

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