大规模风电接入对湖南电网规划影响的研究

发布时间：2018-01-06 01:36

本文关键词：大规模风电接入对湖南电网规划影响的研究　出处：《华北电力大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着世界能源的枯竭,环境污染的日益严重,潮汐、太阳能特别是风力发电这些清洁能源得到了长足的发展。其中,风力发电蕴量丰富、起步较早、技术成熟已经成为发展清洁能源的首要选择。近年来,风电在电网电源中所占的比例不断提高,风电对电力系统的影响变得不可忽视。本文以湖南电网实际情况为背景,定量分析了大规模风电接入后对调峰能力的影响。本文首先综述了风电接入电网对调峰的影响,各类其他电源为电网调峰的特性,目前国内外对接纳风电的研究现状,然后介绍了电力系统运行模拟软件的原理及计算方法。由于对未来风电接入电网的分析需要,利用灰色预测GM(1,1)模型进行负荷预测,并对其模型进行了改进,在一定范围内取得了更好的预测效果。接着,针对风电场随机性、难预测的特点及对系统调峰的影响类别,建立的风电出力情景分析模型,并提出了情景重要性指标,描述风电出力的随机变化对电力系统调峰的影响程度。针对湖南省水利资源丰富的特点,提出适合枯水期的风电—水电负荷高峰互补运行策略,以及在丰水期适用的风电—水电绑定运行策略。并在湖南电网实际2015年规划的边界条件下进行模拟运行计算,验证了策略的有效性,且定量分析了湖南电网2015年在风电接入后的调峰盈余容量。
[Abstract]:As the world energy depletion, environmental pollution is becoming increasingly serious, especially the tides, solar wind power generation these clean energy has got considerable development. The rich wind power reserves started early, mature technology has become the first choice for the development of clean energy. In recent years, wind power accounted for the proportion of power grid continuously improve the impact of wind power on the power system become can not be ignored. This paper is based on the actual situation of Hunan power grid, the quantitative analysis of the influence of large scale wind power integration capability of peak shaving.
This paper reviews the influence of wind power on the peak, various other power characteristics of power peaking, at home and abroad research status of nano docking of wind power, and then introduces the principle and calculation method of the operation of the software simulation of power system. Due to the wind in the future electric analysis of access networks, using the grey forecasting GM (1,1) model in load forecasting, and the model is improved to obtain a better forecasting effect in a certain range. Then, according to the random characteristic of wind farm, difficult to predict and influence on peak categories, scenario analysis model of wind power output is established, and put forward the importance of situational influence index. Describe the random variation of wind power output on the peaking power system. According to the characteristics of water resources in Hunan province is rich in resources, suitable for dry season wind power and hydropower peak load complementary operation strategy, as well as in abundance The wind power and water power binding operation strategy suitable for water period is applied. The simulated operation calculation is carried out under the actual boundary conditions of Hunan power grid in 2015. The effectiveness of the strategy is verified, and the peak load capacity of Hunan power grid in 2015 is quantitatively analyzed.

【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM614

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