风蓄联合系统规划问题研究.pdf

华中科技大学
硕士学位论文
风蓄联合系统规划问题研究
姓名:李志恒
申请学位级别:硕士
专业:电力系统及其自动化
指导教师:吴耀武
20080601
华中科技大学硕士学位论文

摘要
随着经济发展对能源需求的持续增加和常规能源资源的枯竭,风力发电在全世
界范围内获得了巨大的发展。
与常规发电机组相比,风电机组最大的特性在于其出力的随机性和不可控性。
风电大规模加入系统后,会对电能质量和系统的安全稳定带来危害,因此必须辅以
合适的调节手段来平抑风电输出的波动性。
抽水蓄能装置高效清洁、实时调节能力强,被认为是与风电联合配套运行的理
想装置。在风电较集中的电网建设抽水蓄能电站,把随机的、质量不高的风电电量
转换为稳定的、高质量的峰荷电量,实现风电-抽水蓄能联合开发,是该地区能源
资源优化配置的具体体现,在国外已有一定的实际运行经验。本文从系统的角度提
出了风蓄联合运行的规划模型。模型以最佳经济效益和满足较高的可靠性为目标,
通过电力系统的运行模拟和机组优化组合,得出了占一定容量比例的风电机组装机
加入系统后,与之配合的最优的抽水蓄能电站的装机容量。
本文采用模糊聚类方法对某一时间段内风速数据进行分析,利用风速-功率相
关函数得出表征风电出力特性的代表性时间域,并给出了对应的典型出力值的选取
方法,为含风电系统的运行模拟和预测分析提供了理论基础。
抽水蓄能电站在与风电配合过程中所体现出来的静态、动态效益是各种费用计
算的依据,本文对抽水蓄能电站的动态效益进行了分类和计算,包括:事故备用、
负荷备用、负荷跟踪、调相等。

关键词:风蓄联合系统,风电,模糊聚类,抽水蓄能,动态效益

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华中科技大学硕士学位论文

ABSTRACT
The depletion of conventional energy resources and the increasing pressure for the
need to intensify the participation of cleaner forms of energy production in the mix of
electricity generation fostered the development of wind power energy conversion systems.
Wind and hydro both vary, but on opposite timetables Apart from the perspective of
the design of the wind power system, people try to find a more effective way to solve the
issues of balancing and reserve of power in a wind power integrated system such as
batteries, diesel engine and pumped storage power station employed to build up a
complementary system and hydro has long been viewed as the perfect match for wind,
providing the necessary balancing and reserves in an all-renewable package. Hydro offers
some benefits over thermal generation when considered as a wind enabler. Thermal plants
lose efficiency and generate more emissions. Hydro offers near real-time smoothing of
wind’s variability along with cheap energy storage in the form of water in reservoirs. The
planning model of the Wind&Hydro integrated power system is proposed in this paper.
The model aims to meet the higher economic efficiency and reliability, and an