摘要
随着世界首个背靠背混合直流异步联网工程的建成,云南电网将形成更为复杂的多直流馈出系统。针对鲁西混合直流异步联网工程的接入,采用PSASP程序对云南电网所有500 kV变电站进行谐振扫描,扫描类型包括正常运行及鲁西整流站交流滤波器不同组合投入方式。谐振扫描结果表明:正常运行时,5个换流站及其他变电站共计22个站存在3次、5次和7次背景谐波分量的谐振;而在鲁西整流站交流滤波器不同组合投入方式下,某些变电站存在11、13、23、25次特征谐波的谐波放大甚至谐振,从而产生谐振过电压及过电流。
With the completion of the first back-to-back hybrid DC asynchronous interconnection project in the world, Yunnan power grid will form a more complex large scale multi-feed DC and asynchronous interconnection system. Based on Luxi hybrid DC asynchronous interconnection project connected to the power grid, resonance scan is conducted for all 500 kV substations in Yunnan power grid using PSASP program. Scan types consist of normal operation condition and the different combined input modes of AC filter in Luxi rectifier station. The results show that the 5 converter stations and other substations totaling 22 stations have 3tb, 5th and 7th background harmonic resonance during the normal operation. However, under the different combined input modes of the AC filter in Luxi rectifier station, there are 1 l th, 13th, 23th and 25th harmonic amplification and even the resonance in some substations, leading to overvoltage and overcurrent.
作者
段锐敏
刘河林
闫涵
文俊
彭俊臻
郭成
李胜男
DUAN Ruimin1, LIU Helin2, YAN Han2, WEN Jun2, PENG Junzhen1, GUO Cheng1, LI Shengnan1(1. Electric Power Research Institute, Yunnan Power Grid Co., Ltd., Kunming 650000, China; 2. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, Chin)
出处
《智慧电力》
北大核心
2018年第3期55-60,共6页
Smart Power
