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1.哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市 150006
2.大连理工大学电气工程学院,辽宁省大连市 116024
3.国网四川省电力公司,四川省成都市 610041
Received:13 August 2021,
Revised:2021-11-26,
Published Online:15 March 2022,
Published:10 August 2022
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吴磊,晁璞璞,李甘等.数据-模型混合驱动的风电场聚合等值建模方法[J].电力系统自动化,2022,46(15):66-74.
WU Lei,CHAO Pupu,LI Gan,et al.Hybrid Data-model-driven Aggregation Equivalent Modeling Method for Wind Farm[J].Automation of Electric Power Systems,2022,46(15):66-74.
吴磊,晁璞璞,李甘等.数据-模型混合驱动的风电场聚合等值建模方法[J].电力系统自动化,2022,46(15):66-74. DOI: 10.7500/AEPS20210813003.
WU Lei,CHAO Pupu,LI Gan,et al.Hybrid Data-model-driven Aggregation Equivalent Modeling Method for Wind Farm[J].Automation of Electric Power Systems,2022,46(15):66-74. DOI: 10.7500/AEPS20210813003.
目前风电场等值建模方法主要针对全信息的情况,未考虑实际风电运行信息缺失的现状,且无法计及同群机组动态特性的差异。针对这两个问题,提出基于神经网络匹配算法的机组级信息获取方法,以克服实际场站机组级实时出力信息缺失难题;根据风电机组全风速的响应特性,分析确定分群指标,提出了风电场最少等值机表征原理,发现了传统等值方法的误差来源于对同群机组动态特性差异的忽略,进而提出了基于等值机动态行为校正的两机聚合等值建模方法。结果表明,提出的方法在不同的风速场景、电压跌落与故障持续时间下,均能够很好地模拟故障穿越响应特性。
Current equivalent modeling methods for wind farms are mainly aimed at the situation of information holography
without considering the lack of actual wind power operation information
and cannot take into account the dynamic characteristics differences of wind turbines within the same cluster. To solve these two problems
a unit-level information acquisition method based on the neural network matching algorithm is proposed
which overcomes the problem of lack of real-time output information at the unit level in actual stations. According to the response characteristics of the full wind speed of the wind turbine
the clustering index is analyzed and determined. The characterization principle of the minimum equivalent machine of the wind farm is proposed
and it is found that the error of the traditional equivalent method results from ignoring the dynamic characteristic difference in the same cluster of units. Therefore
a two-machine aggregation equivalent modeling method based on the dynamic behavior correction of the equivalent units is proposed. The results show that the proposed method can well simulate the response characteristics during the fault ride-through processes in different wind speed scenarios
and with different voltage dip and fault-duration time.
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