CAJ | 학술논문

大规模光伏发电系统在新能源的发展中有着十分重要的地位。首先，分析了大规模光伏发电系统的特点，重点阐述了光伏发电对电能质量造成的主要影响以及其原因；然后，为了更好地研究光伏并网系统的稳定性，接着讨论了大规模光伏建模的动态以及静态模型；同时分析了谐波、电压质量对电能质量的影响，讨论了电网非对称故障情况下的过电压/过电流问题以及低压穿越技术和孤岛监测技术等；最后，总结了国内外相关的对策和措施，为大规模光伏并网发电系统的规划、仿真、以及控制策略等提供了相应的参考。
대규모광복발전계통재신능원적발전중유착십분중요적지위。수선，분석료대규모광복발전계통적특점，중점천술료광복발전대전능질량조성적주요영향이급기원인；연후，위료경호지연구광복병망계통적은정성，접착토론료대규모광복건모적동태이급정태모형；동시분석료해파、전압질량대전능질량적영향，토론료전망비대칭고장정황하적과전압/과전류문제이급저압천월기술화고도감측기술등；최후，총결료국내외상관적대책화조시，위대규모광복병망발전계통적규화、방진、이급공제책략등제공료상응적삼고。
Large-scale grid-connected solar generation system plays an important role in the development of new energy sources. Firstly, this paper analysis the characteristics of large-scale photovoltaic power generation system, and the main impacts on the power grid with large-scale PV integration are elaborated. In addition , this paper also reviews the dynamic and static models for better stability studies, and the influence of the harmonic and voltage quality on the power quality is analyzed, the overvoltage/overcurrent problems under unbalanced grid faults, low voltage ride through (LVRT) technology and islanding detection technology are also presented. Finally, the corresponding solutions and countermeasures are summarizes, and the references are offered to readers from the perspective of power system planning, simulation and control strategy.