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首页> 外文期刊>Journal of Applied Meteorology and Climatology >Regional Variability in New Zealand's Wind Resource Linked to Synoptic-Scale Circulation: Implications for Generation Reliability
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Regional Variability in New Zealand's Wind Resource Linked to Synoptic-Scale Circulation: Implications for Generation Reliability

机译：与天气尺度环流相关的新西兰风资源区域差异：对发电可靠性的影响

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摘要

Even in locations endowed with excellent wind resources, the intermittent nature of wind is perceived as a barrier to reliable generation. However, recent studies have demonstrated that electrically interconnecting wind farms in a meteorologically oriented network can reduce supply variability and the observed frequency of zero-generation conditions. In this study a 5-yr synthetic dataset of 15 wind farms is utilized to investigate the benefits to supply reliability from wind farm interconnection in New Zealand. An examination is carried out primarily through a synoptic climatology framework, hypothesizing that benefits to reliability are primarily related to the degree to which wind farms are influenced differently by the synoptic-scale circulation. Using a weather-typing approach and composite analysis, regionality is observed in the linkages between synoptic-scale circulation and wind resources, particularly between wind farms located in the far northern and far southern regions of the country. Subsequently, and as compared with all other possible combinations, supply reliability is observed to be optimized in a network that includes wind farms connected between far northern and far southern regions, under which the frequency of hours with zero generation is almost eliminated. It is likely that the frequency of hours with zero generation could be further reduced on the basis of a more extensive meteorologically based selection of wind data from a greater number of locations. It is suggested that these findings should be taken into consideration in future planning and site selection of wind farm projects in New Zealand.
机译：即使在风能资源丰富的地区，风的间歇性也被认为是可靠发电的障碍。但是，最近的研究表明，以气象学为导向的网络中的风电场之间的电气互连可以减少供应的可变性并降低零发电条件的观测频率。在这项研究中，使用了一个由15个风电场组成的5年综合数据集，以研究新西兰风电场互联带来的可靠性优势。检验主要是通过天气气候学框架进行的，假设对可靠性的好处主要与风电场受天气尺度环流的影响程度有关。使用天气分型方法和综合分析，在天气尺度环流和风资源之间的联系中观察到区域性，特别是在该国最北部和最南部地区的风电场之间。随后，与所有其他可能的组合相比，在包含连接在最北部和最南部区域之间的风电场的网络中，观察到供电可靠性得到了优化，在该网络中几乎消除了零发电的小时频率。在更广泛的基于气象的风力数据选择基础上，有可能进一步减少零发电时间的频率。建议在将来对新西兰风电场项目进行规划和选址时应考虑这些发现。

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