A 2020 GB transmission network study using dispersed wind farm power output
A 2020 GB transmission network study using dispersed wind farm power output
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DOI：
10.1016/j.renene.2011.06.004
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发表时间：
2012
期刊：
影响因子：
8.7
通讯作者：
Annelies Gerber;Meysam Qadrdan;M. Chaudry;J. Ekanayake;N. Jenkins
中科院分区：
文献类型：
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作者：
Annelies Gerber;Meysam Qadrdan;M. Chaudry;J. Ekanayake;N. Jenkins
预计到2020年，英国将安装大量风力发电能力。其中相当一部分产能将位于苏格兰。这将需要加强苏格兰和英格兰之间的输电能力。分析大量风力发电能力对电网的影响需要建立风力发电输出模型。由于缺乏可用的风力输出数据，开发了一种从真实的风速数据人工生成风力输出的方法。该技术是基于用于生成威布尔分布的每月风速平均值。每小时的风力发电输出时间序列超过一年的18个陆上和海上地点在英国。计算了容量因子、最大值、最小值和每小时产量变化，以及它们的平均值和标准差。将生成数据的统计参数与真实的风电出力的统计参数进行比较，结果表明两者具有相似的统计特性。地理分布的风力发电输出数据与最优潮流模型一起用于分析三个网络案例研究。一个案例研究使用假设的2020年英国输电网络，另外两个案例使用连接苏格兰和英格兰的东部和西部高压直流输电线路增强网络。仿真结果表明，这两个高压直流输电线路在减少风力发电削减和运营成本的有效性。
A large amount of wind power generation capacity is expected to be installed in Great Britain by 2020. A considerable amount of this capacity will be located in Scotland. This will require reinforcement of power transmission capacity between Scotland and England. Analysis of the impact of a large amount of wind generation capacity on the electricity network requires modelling of wind power output. Due to the lack of available wind power output data a method for artificially generating wind power output from real wind speed data was developed. The technique is based on monthly wind speed averages used to generate Weibull distributions. Hourly wind power output time series over one year are generated for 18 onshore and offshore locations in Great Britain. Capacity factors, maxima, minima and hourly output variations, their means and standard deviations are calculated. A comparison of statistical parameters of the generated data with those of real wind power output shows that both have similar statistical properties. The geographically distributed wind power output data is used in conjunction with an optimal load flow model for analysing three network case studies. One case study uses a hypothesised 2020 Great Britain transmission network the other two cases enhance the network with an Eastern and Western HVDC line linking Scotland and England. The simulation results illustrate the effectiveness of both HVDC lines in reducing wind generation curtailments and operational costs.