马明,杜婉琳,白雪儿,王东,黄辉.配电网中串联补偿电容方案的谐波谐振分析[J].电测与仪表,2022,59(4):159-163. MA Ming,DU Wanlin,BAI Xueer,WANG Dong,HUANG Hui.Harmonic Resonance Analysis of Series Compensation Capacitor Scheme in Distribution System[J].Electrical Measurement & Instrumentation,2022,59(4):159-163.
配电网中串联补偿电容方案的谐波谐振分析
Harmonic Resonance Analysis of Series Compensation Capacitor Scheme in Distribution System
Harmonic resonance can seriously affect the safe and reliable operation of the distribution systems. Harmonic resonance analysis has been performed for the series compensation capacitor scheme aimed at solving the overload and low voltage problems in a real distribution system. The simulation model and node admittance matrix model of the distribution system has been built, and then the parallel harmonic resonance assessment and series harmonic resonance assessment have been performed based on the modal analysis method and a modified admittance scanning analysis method, respectively. The comparison of the potential harmonic resonance risk before and after the im-plementation of the compensation scheme shows that the series compensation scheme will not only shift the original system parallel and series harmonic resonance frequencies, but also leads to a new series harmonic resonance fre-quency at the low frequency region, increasing the risk of system harmonic resonance. This paper provides a ref-erence for the study of the harmonic resonance risk of distribution network with the series compensation capacitor.
