1000kV长沙--南昌特高压交流对湖南电网影响分析  

Analysis on Influence of 1000 kV Changsha-Nanchang UHV AC Project on Hunan Power Grid

作　　者：柳永妍 胡果莉 陈道君 呙虎 LIU Yongyan;HU Guoli;CHEN Daojun;GUO Hu(State Grid Hunan Electrical Power Company Limited Research Institute,Changsha 410007,China;Hunan Xiangdian Test&Research Institute Co.,Ltd.,Changsha 410004,China)

机构地区：[1]国网湖南省电力有限公司电力科学研究院,湖南长沙410007 [2]湖南省湘电试验研究院有限公司,湖南长沙410004

出　　处：《湖南电力》2021年第6期89-92,共4页Hunan Electric Power

摘　　要：1 000 kV长沙-南昌特高压交流的投运,有效强化电网省间交流通道。通过对比特高压交流投运前后省间交流通道无功功率传输情况,分析得出湖南电网暂态电压稳定特性大幅提升的原因。分别针对省间交流通道、交直流耦合特性分析湖南电网区外最大受电能力,并讨论省外机组不同开机方式对受电能力的影响。研究结果为1 000 kV长沙-南昌特高压交流投运后湖南电网安全稳定运行提供技术支撑。The UHV AC project of 1000 kV Changsha Nanchang effectively strengthens the inter-provincial AC channel of power grid.Through the analysis of the reactive power transmission of the AC channel between provinces before and after the UHV AC put into operation,the reasons for the significant increase in the transient voltage stability characteristics of Hunan power network are obtained.From the perspective of inter-provincial AC channel and AC-DC coupling characteristics,the maximum power receiving capacity of Hunan power grid is analyzed,and the influence of different combination of units outside Hunan province on power receiving capacity is discussed.The research results provide technical support for the safe and stable operation of Hunan power grid after the UHV AC project from Changsha to Nanchang is put into operation.

关 键 词：湖南电网 特高压交流 暂态电压稳定 受电能力 

分 类 号：TM712[电气工程—电力系统及自动化]