摘要
介绍实际工程中所用的直流滤波器的形式并讨论其参数的选择方式,同时介绍用于评价直流滤波器设计性能指标的等效干扰电流Ieq以及用于计算Ieq的三脉动谐波模型。以目前在研待建的云广特高压直流工程为例,利用Siemens公司的谐波分布计算程序HarmDistr进行计算,讨论分析各种因素对Ieq的影响。最后针对不同的直流系统运行工况、不同的直流滤波器的投切组合进行直流滤波器性能计算,比较Ieq的大小并进行分析讨论。
The DC filter types that are used in actual projects are introduced and its parameter selection methods are also discussed. Moreover, equivalent interference current Ieq for evaluating DC filter＇s performance is introduced and a three-pulse harmonic model for calculating Ieq is presented. Taking Yun-Guang ultra-HVDC project which awaits construction for example, the effects of some factors on Ieq are discussed and analyzed by using the harmonic distributed calculation program HarmDistr developed by Siemens Corporation. Finally, the results of Ieq are compared and analyzed for the different HVDC operation conditions and DC filter＇s switching configurations.
出处
《电力系统自动化》
EI
CSCD
北大核心
2007年第8期90-94,共5页
Automation of Electric Power Systems
基金
中国南方电网公司科研项目资助(K0539)。~~
