摘要
针对已有串联结构有源滤波器(active DC filter,ADF)的不足,分析了HVDC系统中直流ADF基本原理后,提出了一种低成本的结合有、无源滤波方案,保证滤波器有源模块不承受直流电压,不流过直流电流,有效降低ADF装置容量的串联混合型结构;从传递函数角度建立ADF系统数学模型,将消谐控制方法用于ADF,分析其补偿原理;初步分析ADF设备与无源滤波PF设备的配合使用情况,以进一步减小有源滤波装置容量。仿真和实验结果验证该方案的有效性。
We analyzed the principle that the active DC filters（ADF） suppress the transmission harmonics of the HVDC system,and proposed a low cost series hybrid DC filter on the basis of conventional structures.The hybrid ADF can utilize the strongpoint of both passive filters and active filters,and active part of such ADF does not bear DC component voltage and flow DC component current.The equipment rating can be reduced sharply.The mathematical model of the system based on transfer function was established and a selective harmonic compensation control technology was given.The possibility of using both ADF and shunt passive filter was analyzed to further reduce the capacity of the ADF.Theoretical analysis has been verified by simulation and experiment results.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2010年第9期2341-2345,共5页
High Voltage Engineering
基金
国家自然科学基金委员会创新研究群体科学基金(50721063)~~
