Research on Evaluation Index System for Reliability of Power System including Offshore Wind Farm

2022 4th International Conference on Power and Energy Technology (ICPET) Pub Date : 2022-07-28 DOI:10.1109/ICPET55165.2022.9918467

Xiaohui Wang, Ruanming Huang, Junyu Zhao, Fei Fei, Haoen Li, E. Wu, X. Zhao, Shan Gao

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Abstract

With the continuous increase of grid-connected capacity of offshore wind power, the strong randomness and fluctuation of its output power have brought unprecedented difficulties and challenges to the safe and reliable operation of power grid. Previous studies mostly focus on the adequacy of offshore wind farms and their power collection systems, and less consider the impact of offshore wind farm on the receiving-end grid. Therefore, it is necessary to comprehensively evaluate the reliability of power system including offshore wind farm. Firstly, this paper establishes an overall reliability evaluation system of power system with offshore wind farm from three aspects: wind resource evaluation index, transmission capacity of offshore wind power system and outage load of receiving-end grid. Then, the improved grey correlation method is used to weight the indexes to further improve the objectivity of the evaluation. Finally, in IEEE-RTS79 system, the reliability of power system with offshore wind farm is analyzed and evaluated. The effectiveness of the proposed evaluation system is proved, and some suggestion for the planning of offshore wind farm are given.

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包括海上风电场在内的电力系统可靠性评价指标体系研究

随着海上风电并网容量的不断增加，其输出功率的强随机性和波动性给电网的安全可靠运行带来了前所未有的困难和挑战。以往的研究多集中在海上风电场及其集电系统的充分性上，较少考虑海上风电场对接收端电网的影响。因此，有必要对包括海上风电场在内的电力系统的可靠性进行综合评估。首先，从风资源评价指标、海上风电系统输电能力和接收端电网停电负荷三个方面，建立了海上风电场电力系统总体可靠性评价体系。然后，采用改进的灰色关联法对指标进行加权，进一步提高评价的客观性。最后，在IEEE-RTS79系统中，对海上风电场电力系统的可靠性进行了分析和评估。验证了该评价体系的有效性，并对海上风电场规划提出了建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2022 4th International Conference on Power and Energy Technology (ICPET)

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