电力系统自动化2016，Vol.40Issue(22)：63-70,8.DOI:10.7500/AEPS20151223004
光伏电站接入对多机电力系统低频振荡的影响分析
Influences of Grid-connected Photovoltaic Power Plants on Low Frequency Oscillation of Multi-machine Power Systems
摘要
Abstract
In order to investigate the influences of grid-connected photovoltaic (PV) power plants on the low frequency oscillation of multi-machine power systems,detailed derivations are made and the state equation and the linearized model of the multi-machine power system containing PV power plants are set up based on the dynamic model of grid-connected PV power plant.On this basis,the influences of different locations and penetrations of PV on low frequency oscillation of a two-area four-generator system are analyzed systematically by using the modal analysis method,when the system rotational inertia is changed or unchanged.The influences are then validated by time domain simulations.The simulation results show that the PV power plant will not generate additional low frequency oscillation modes.There exist significant differences in influences of PV integration on low frequency oscillation when the system rotational inertia is changed or unchanged.The influences of PV integration depend on the location and penetration of PV power plant.Finally,the influences of PV location and penetration on inter-area low frequency oscillation mode are further validated by eigenvalue sensitivity analysis.关键词
光伏电站/低频振荡/模式分析法/转动惯量/特征值灵敏度Key words
photovoltaic power plant/low frequency oscillation/modal analysis method/rotational inertia/eigenvalue sensitivi-ty引用本文复制引用
葛景,都洪基,赵大伟,马进,钱敏慧,朱凌志..光伏电站接入对多机电力系统低频振荡的影响分析[J].电力系统自动化,2016,40(22):63-70,8.基金项目
国家电网公司科技项目“大规模新能源发电并网运行及新型控制技术研究”。 （）
