CAJ | 학술논문

牵引负荷是电力系统的重要负荷，而功率因数低、负序功率大、谐波含量高是牵引变电所电能质量的突出问题。介绍有关电能质量的国家标准，通过对牵引变电所实际测量数据的统计、计算和分析，依据国标对牵引变电所的电能质量做了初步评价，并针对其存在的电能质量问题，提出采用一种带降压变压器的单调谐滤波器动态无功补偿方案，通过计算验证该方案的有效性。
견인부하시전력계통적중요부하，이공솔인수저、부서공솔대、해파함량고시견인변전소전능질량적돌출문제。개소유관전능질량적국가표준，통과대견인변전소실제측량수거적통계、계산화분석，의거국표대견인변전소적전능질량주료초보평개，병침대기존재적전능질량문제，제출채용일충대강압변압기적단조해려파기동태무공보상방안，통과계산험증해방안적유효성。
Traction load is an important load of the power system. Low power factor, distinct negative sequence component and rich harmonics are the three major problems of electric power quality of the traction substation. In this paper, some of the national standards of electric power quality are introduced. Through the statistics, calcula- tion and analysis of the actual measurement data of traction substation, and according to national standards of elec- tric power quality, the electric power quality of the traction substation is preliminarily evaluated. In the light of the problems of electric power quality, the scheme of single-tuned passive filters with reducing transformer is intro- duced which can realize the adjustable compensation, the effect of the scheme is proved by the calculation result.