摘要
为了很好地消除电力系统中的谐波,提出了一种动态电力滤波器设计方案,它是在无源电力滤波器基础上,通过反并联晶闸管来控制滤波支路的投切。采用了频谱分析法和电压过零点控制相应的滤波支路投入运行。该动态电力滤波器结构简单、操作简便、造价低廉、维修容易,还具有动态稳定性高、选择性强、与系统谐振几率小、投切瞬间不存在振荡等优点。通过仿真,该动态电力滤波器能够很好地滤除谐波源中的各次谐波。
Flexible passive power filter design for eliminating harmonics is presented, which is based on passive power filter and converse-paralleled thyristor as filter switch-on or switch-off. Frequency spectrum analysis and the crossing point of voltage are adopted to control the corresponding filter branch switch. The flexible passive power filter has the advantages of simple structure, convenient operation, low price, easy maintenance. Moreover, it has particular advantages of high stability, strong selectivity, low probability for resonation with system and no vibration at the point of switch-on. Simulation showed that this flexible passive power filter is capable of filtering harmonics.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2005年第6期675-678,共4页
Journal of Shenyang Agricultural University
关键词
无源电力滤波器
频谱分析
控制
仿真
passive power filter
frequency spectrum analysis
control
simulation
