CAJ | 학술논문

大规模间歇式电源并网、大规模储能应用以及电动汽车的大量使用，对电网电能质量问题产生很大影响。在分析国内外研究背景、发展趋势的基础上，在如下方面做了总结：光伏发电并网产生的谐波、直流注入等电能质量问题及其抑制方法；风电并网产生的谐波、电压波动与闪变、频率波动、电压偏差等电能质量问题及其抑制方法；储能系统在电能质量治理中所起的作用；大量电动汽车并入电网对电网产生的电能质量问题、抑制及其控制方法。最后，结合我国电网发展趋势，给出了大规模间歇式电源并网环境下电能质量的治理建议。
대규모간헐식전원병망、대규모저능응용이급전동기차적대량사용，대전망전능질량문제산생흔대영향。재분석국내외연구배경、발전추세적기출상，재여하방면주료총결：광복발전병망산생적해파、직류주입등전능질량문제급기억제방법；풍전병망산생적해파、전압파동여섬변、빈솔파동、전압편차등전능질량문제급기억제방법；저능계통재전능질량치리중소기적작용；대량전동기차병입전망대전망산생적전능질량문제、억제급기공제방법。최후，결합아국전망발전추세，급출료대규모간헐식전원병망배경하전능질량적치리건의。
The power quality of power grid will be greatly affected by grid-connection of large-scale intermittent power sources, application of large-scale energy storage devices and widespread use of electric vehicles (EV). On the basis of analyzing research background and trend of power quality problem home and abroad, the results of the research on power quality problems and elimination methods for them in such aspects as the harmonics and direct current injection caused by grid-connection of PV generations, the harmonics, voltage fluctuation and flicker, frequency fluctuation, voltage deviation caused by grid-connection of wind farms, the role of power quality management played by energy storage systems and the power quality problem caused by grid-connection of large amount of EV and corresponding control measures are summarized. Finally, combining with the development trend of power grids in China, some suggestions on power quality management under grid-connection of large-scale intermittent power sources are given.