基于电压源型换流器的直流融冰装置扩展功能研究  

Extended Functions of DC Ice-melting Device Based on Voltage Source Converter

作　　者：史华勃[1] 刘天琪[1] 李兴源[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9期1561-1565,共5页East China Electric Power

基　　金：国家自然科学基金项目(51037003);国家科技支撑计划(2009BAA23B02)~~

摘　　要：以交直流并联输电系统为仿真模型,研究了基于电压源型换流器的直流融冰装置非融冰运行时,扩展为静止同步补偿器(STATCOM)或者统一潮流控制器(UPFC)对电力系统的作用。作为STATCOM运行时,其对交直流系统的运行稳定性有良好支撑作用,既可提高直流系统传输极限又可抑制交流系统中出现的振荡;作为UPFC运行时,除具有STATCOM功能外还可以有效调节交流线路潮流,利用其功率调制可以对系统进行功率支援,改善交直流系统的性能。This paper uses AC-DC parallel transmission system as simulation model to study the functions of DC ice-melting device based on voltage source converter when not running as de-icer,but extended as STATCOM or UPFC.When operating as STATCOM,it facilitates the operation stability of AC-DC system,not only expands the transmission limit of DC system,but also inhibits the oscillation of AC system;when operating as UPFC,besides the STATCOM functions,it can efficiently adjust AC line power flow,and this power adjustment can be used to supply power to the system and improve the performance of AC-DC system.

关 键 词：电压源型换流器 直流融冰装置 静止同步补偿器 统一潮流控制器 

分 类 号：TM712[电气工程—电力系统及自动化] TM74