CAJ | 학술논문

随着国家大力推进分布式电源的发展，配电网电压骤降现象将变得更为复杂。基于分布式电源接入配电网的特点，运用电磁暂态仿真PSCAD/EMTDC软件建立分布式电源模型，应用所建立的模型对某企业电网络进行仿真计算，研究分布式电源在不同故障类型、并网方式、容量、接入位置等因素下对电压骤降的影响，得到分布式电源缓解电压骤降问题的策略。
수착국가대력추진분포식전원적발전，배전망전압취강현상장변득경위복잡。기우분포식전원접입배전망적특점，운용전자잠태방진PSCAD/EMTDC연건건립분포식전원모형，응용소건립적모형대모기업전망락진행방진계산，연구분포식전원재불동고장류형、병망방식、용량、접입위치등인소하대전압취강적영향，득도분포식전원완해전압취강문제적책략。
With development of distributed generation pro-moted by the government,the voltage sag of the distribution network is more and more complicated. Based on characteristics of distribution network interconnected with distributed genera-tion(DG),this paper builds the model of voltage sags by means of PSCAD/EMTDC. The model thus established is used to simulate voltage sags in the real case of a power grid,and analyze impacts of the DG source on the voltage sags under the different fault type and synchronizing mode,capacity,location and other factors. In addition,the paper puts forward some strategy to relieve voltage sags of the distribution network inter-connected with distributed generation.