基于运行数据的海上风电场功率特性分析

随着海上风电场并网容量的逐渐增加，海上风电功率的随机性与不确定性问题进一步对电网规划与运行提出挑战。针对缺乏实测数据导致目前海上风电出力特性研究不足的现状，该文基于海上风电场现场实测运行数据与区域电网负荷特性，围绕电网运行与调度关注的关键问题，分别从定性分析与定量分析的角度对海上风电功率波动性规律进行了分析与总结。研究结果表明，我国东南沿海海上风电功率拥有较高的容量可信度、具有昼高夜低的日内变化特征及秋高夏低的季节变化特征等。研究结果可用于中长期发电计划编制、调度决策、调峰调频容量配置等方面，为大规模海上风电合理消纳提供参考依据。

Analysis on Power Characteristics of Offshore Wind Farm Based on Measured Operational Data

Along with gradually increase of grid-connected capacity from offshore wind farm (abbreviated OWF), both randomness and uncertainty accompanied with the power generated by OWF affect the planning and operation of power grid even more. At present, the output characteristics of OWF cannot be well researched due to the short of measured date. In allusion to the present situation that the output characteristics of OWF was not adequately researched and based on field-measured operational data of OWF and load characteristics of regional power network, the key problems, which special attention was paid to by power grid operation and scheduling departments, were regarded as the main objects to be researched and the fluctuation law of the main objects to be researched and the fluctuation law of the power generated by OWF was analyzed and summarized from the perspective of qualitative analysis and quantitative analysis respectively. Research results show that the power generated by OWF located at China's South-East coastal areas possesses higher capacity credibility and reveals such a feature that within a whole day the power fluctuation is higher during the daytime and lower during the nighttime and within a whole year the seasonal power fluctuation is higher during the autumn and lower during the summer. Above mentioned results might be utilized in such aspects as scheduling medium- and long-term power generation plan, scheduling decision, capacity allocation for peak load regulation and frequency regulation and so on to provide reference for rational wind power accommodation of large-scale OWF.