CAJ | 학술논문

随着电力系统敏感设备的不断增加及用户对电能质量要求的提高，电压跌落的抑制问题成为电力系统研究的一项重要内容。传统方法应用静止同步补偿器（ STATCOM）抑制电压跌落，文章在此基础上提出了新的观点。首先，基于改进故障点法，结合STATCOM的补偿原理，对电网各节点电压跌落频次进行了评估。进而，分析STATCOM对抑制电网其它节点电压跌落的影响，提出STATCOM的分布式配置方案。最后，结合敏感负荷节点的电压跌落经济性评估，提出了配电网中STATCOM的优化配置概念。通过IEEE-30节点标准测试系统，分析验证了文章所提出的理论。
수착전력계통민감설비적불단증가급용호대전능질량요구적제고，전압질락적억제문제성위전력계통연구적일항중요내용。전통방법응용정지동보보상기（ STATCOM）억제전압질락，문장재차기출상제출료신적관점。수선，기우개진고장점법，결합STATCOM적보상원리，대전망각절점전압질락빈차진행료평고。진이，분석STATCOM대억제전망기타절점전압질락적영향，제출STATCOM적분포식배치방안。최후，결합민감부하절점적전압질락경제성평고，제출료배전망중STATCOM적우화배치개념。통과IEEE-30절점표준측시계통，분석험증료문장소제출적이론。
With the increase of power-sensitive equipment and requirement on power quality,the voltage sag prob-lem has become an important part of power system research. While traditional methods apply STATCOM to the inhibi-tion of voltage sag,this paper proposes a new perspective. First,based on the improved fault point method and com-bined with the compensation principle of STATCOM,the grid voltage sag frequency of each bus is evaluated. Then the impact of STATCOM on the inhibition of grid voltage sag of other buses is analyzed,and the STATCOM distributed configuration is proposed. Finally,based on economic assessment of voltage sag of sensitive loads,the concept of opti-mal allocation for STATCOMs in distribution network is presented. The proposed theory is verified by standard IEEE-30 bus test system.