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计及电气主接线影响的风电场发电风险评估 被引量:2

Wind Farm Generation Risk Assessment Taking into Account the Impact of Electrical Main Wiring
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摘要 随着风电渗透率不断增加,其出力的多状态特性以及风电并网系统中的元件故障将对电力系统安全稳定运行带来较大影响。传统的风电场可靠性建模方法对这些因素考虑不够全面。采用状态缩减法形成多状态风电场出力模型,并根据风电并网系统中不同元件的故障形式,将风电场等效为输电系统中一个带不同电源容量的母线元件。使用双层蒙特卡洛抽样技术对等效后的输变电联合系统进行抽样,采用交流潮流模型计算系统风险指标。最后,以改进的IEEE-RTS6系统为例,对所提方法和模型进行了分析和验证,结果表明计及电气主接线影响输变电联合系统等效模型以及双层蒙特卡洛抽样方法的有效性。 With the increasing penetration rate of wind power,the multi-state characteristics of wind power output and the component failure of wind power grid-connected system will have a great impact on the safe and stable operation of power system.The modeling methods of traditional wind farm reliability do not fully consider these factors.The output model of multi-state wind farm is formed by state reduction method,and the wind farm is made equivalent to a bus element with different power capacity in the transmission system according to the fault forms of different components in the grid-connected system.Then,the double-layer Monte Carlo sampling technique is used to sample the equivalent combined transmission-transformation system,and the AC power flow model is used to calculate the system risk index.Finally,with the improved IEEE-RTS6 system taken as an example,the proposed method and model are analyzed and verified.The results show that the equivalent model of the combined transmission-transformation system considering the influence of the main electrical wiring and the double-layer Monte Carlo sampling method are valid.
作者 韩刚 张侃君 王婷 滕捷 HAN Gang;ZHANG Kanjun;WANG Ting;TENG Jie(Electric Power Research Institute,State Grid Hubei Electric Power Co.,Ltd.,Wuhan Hubei 430077,China)
出处 《湖北电力》 2023年第5期1-8,共8页 Hubei Electric Power
基金 省部级重点科技项目(项目编号:2023BAB002)。
关键词 多状态风电场 电气主接线 输变电联合系统 风电并网 风力发电 multi-state wind farm main electrical wiring combined transmission-substation system wind power-grid connected wind power generation
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