中国电机工程学报2024，Vol.44Issue(8)：2978-2989,中插4,13.DOI:10.13334/j.0258-8013.pcsee.223060
面向大规模光伏电站实时仿真的单元级精细化建模方法
Refined Real-time Simulation Modeling at the Unit Level for Large-scale PV Power Stations
摘要
Abstract
The construction of large-scale photovoltaic(PV)power stations is the mainstream trend of photovoltaic development,supporting the realization of"carbon peaking and carbon neutrality goals".However,huge amounts of PV power units intensify the contradiction between"complex model calculations"and"limited simulation resources",which makes it face great difficulties in the refined real-time simulation.In this paper,the refined real-time simulation modeling at the unit level for large-scale PV power stations is proposed.First,the working principle of the PV array is analyzed,and the circuit calculation form of"voltage→ current"is rewritten to the iterative update form of"historical current source + change amount",and then the large-time-scale correction of electrical parameters and historical sources is combined to achieve low computational complexity modeling.Next,the switch function model of the inverter is used to separate the AC and DC matrix solution.The DC circuit is solved independently and the AC circuit eliminates nodes to obtain the definite admittance equivalent model of the PV power unit.Finally,the accuracy of the proposed model is verified on the RTDS platform and realizes the real-time simulation of the PV power station with hundreds of units.关键词
大规模光伏电站/光伏发电单元/实时仿真/精细化建模Key words
large-scale photovoltaic power station/photo-voltaic power unit/real-time simulation/refined modeling分类
信息技术与安全科学引用本文复制引用
郭临洪,夏仕伟,李昇蔚,冯谟可,许建中,胡斌江..面向大规模光伏电站实时仿真的单元级精细化建模方法[J].中国电机工程学报,2024,44(8):2978-2989,中插4,13.基金项目
国家自然科学基金项目(52277094). Project Supported by National Natural Science Foundation of China(52277094). （52277094）
