中国电机工程学报2017，Vol.37Issue(18)：5294-5302,9.DOI:10.13334/j.0258-8013.pcsee
输电线路工频动态相量模型在半波长交流输电系统机电暂态仿真中的应用研究
Half-wavelength System Transients Stability Simulation Using Dynamic Phasor Model of AC Transmission Line
摘要
Abstract
In order to accurately simulate the wave transmission characteristics of the half wavelength AC line in the electromechanical transient simulation,this paper presents the application of AC line dynamic phasor model to the half wavelength transmission system simulation.The key to the application of the dynamic phasor model in the electromechanical transient simulation is the simulation precision and the simulation step size.When simulating external fault,half cycle simulation time step can be directly applied.While simulating internal faults of the half wavelength AC line still with half cycle time step,the approximate linear interpolation method must be used.To take account of simulation precision and speed,variable time step method was proposed.Based on the results comparison of electromagnetic transient simulation and electomechanical transient simualtion,it shows that the dynamic phasor model is more accurate than the traditional AC line steady state model,and the variable time step method is superior to the approximate linear interpolation method with fixed large time step.关键词
半波长/电磁暂态/机电暂态/动态相量/点对网输电Key words
half wavelength/electromagnetic transient/transient stability/dynamic phasor/point to network transmission分类
信息技术与安全科学引用本文复制引用
张彦涛,葛磊蛟,秦晓辉,汤涌,苏丽宁,王义红,孙玉娇,姜懿郎,董毅峰,王毅..输电线路工频动态相量模型在半波长交流输电系统机电暂态仿真中的应用研究[J].中国电机工程学报,2017,37(18):5294-5302,9.基金项目
国家电网公司科技项目(JS71-16-001,XT71-16-001).Project of State Grid Corporation of China (JS71-16-001,XT71-16-001). （JS71-16-001,XT71-16-001）
