考虑线路阻塞的高渗透率风电电网暂态稳态量化分析方法  

A Quantitative Analysis Method for the Transient and Steady State of High Permeability Wind Power Grid Considering Line Congestion

作　　者：王彦沣 张大伟 熊志杰[1] 邓志森[1] 张勤勤 WANG Yanfeng;ZHANG Dawei;XIONG Zhijie;DENG Zhisen;ZHANG Qinqin(State Grid Sichuan Electric Power Company,Chengdu 610041,Sichuan,China;Dispatching and Control Center of State Grid Tianfu New Area Power Supply Company,Chengdu 610213,Sichuan,China)

机构地区：[1]国网四川省电力公司,四川成都610041 [2]国网天府新区供电公司调控中心,四川成都610213

出　　处：《电网与清洁能源》2022年第8期138-143,共6页Power System and Clean Energy

基　　金：南方电网公司重点科技项目(GXFIXN20191215)。

摘　　要：当前电网暂态稳定性分析方法未采用相关系数求解不同风电场的边缘分布,导致暂态稳态量化分析结果存在较大误差。提出考虑线路阻塞的高渗透率风电电网暂态稳态量化分析方法。构建考虑线路阻塞的高渗透率风电电网暂态稳态能量函数,分析风电出力变化对发电机组功角特性产生的影响,获取对应的风电电网暂态稳态判定依据;通过相关系数求解不同风电场的边缘分布,引入威布尔分布的逆函数获取风速序列构建风电电网暂态稳态风险指标,并进行风电电网暂态稳态量化分析。通过相关测试,全面验证了所提方法的有效性和可操作性。The current method for power grid transient stability analysis does not use the correlation coefficient to solve the edge distribution of different wind farms,resulting in large errors in the quantitative analysis results of the transient and steady state. To this end,a transient and steady-state quantitative analysis method of high permeability wind power grid considering line congestion is proposed in this paper. The transient and steady-state energy function of high permeability wind power grid considering line congestion is constructed,and the influence of wind power output change on power angle characteristics of generator set is analyzed,and the corresponding judgment basis of transient and steady-state of wind power grid is obtained. At the same time,the edge distributions of different wind farms are solved through the correlation coefficient, and the inverse function of Weibull distribution is introduced to obtain the wind speed sequence to construct the transient and steady-state risk index of wind power grid,which is used for the quantitative analysis of the transient and steady-state of wind power grid. The effectiveness and operability of the proposed method are comprehensively verified by relevant tests.

关 键 词：考虑线路阻塞 高渗透率 风电电网暂态稳态 量化分析 

分 类 号：TM721[电气工程—电力系统及自动化]