溪洛渡送电广东同塔双回高压直流输电系统谐波不稳定研究  

Harmonic Instability in DCT-HVDC Xiluodu-Guangdong Power Transmission System

作　　者：王曦[1] 李兴源[1] 穆子龙[1] 陈宝亮[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《华东电力》2012年第1期56-61,共6页East China Electric Power

基　　金：国家自然科学基金项目(51037003)~~

摘　　要：溪洛渡右岸电站送广东输电系统是世界上首个同塔双回高压直流输电工程(DCT-HVDC)。首先介绍了该输电系统交、直流侧交互作用的复杂性,运行方式的多样性,然后利用电磁暂态仿真程序PSCAD/EMTDC对多种运行方式下该系统送端的谐波不稳定问题进行了仿真研究。经过频率扫描分析、故障仿真验证,结果表明,溪洛渡送电广东直流系统不会发生谐波不稳定现象。Xiluodu-Guangdong transmission system is the first DCT-HVDC project in the world.This paper firstly presents the complexity of interactions between AC and DC side and the variety of operation modes.Then by using electromagnetic transient simulation program PSCAD/EMTDC,the harmonic instability problems at the system＇s sending end in different operation modes are simulated and researched.By means of frequency scanning analysis and fault simulation test,the results show that harmonic instability will not occur in this system.

关 键 词：同塔双回 高压直流 谐波不稳定 电磁暂态仿真 

分 类 号：TM72[电气工程—电力系统及自动化]