摘要
为准确分析有源滤波器的运行特点,根据系统控制策略的需要,在考虑了有源滤波器输出的基础上采用开关函数法建立了并联混合型有源电力滤波器的数学模型,这样可推导出装置在系统中电压与电流的关系用于控制信号的产生。实践表明通过采用这种方法建立的模型对有源滤波器的滤波效果比较明显。
The nonlinear loads/sources generate harmonic and reactive current, leading to low power factor, low energy efficiency, low power capacity and harmful disturbance to other appliances. Hybrid Active Power Filter （ HAPF）, combined the merits of Active Power Filter（APF） and PF, is used in harmonic eliminating and reactive power compensating equipment. Based on the needs of system control strategy, and with the output filter of active power filter considered, a switch function method was adopted to build the mathematical model of parallel hybrid active power filter, thus the relationship between the voltage of the device in the system and current can be inferred and used to produce control signals. Practice indicated that the model made by this method is of vital importance in the filtering performance of active power filter.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2007年第9期146-149,共4页
High Voltage Engineering
基金
国家自然科学基金(60474041)
湖南省教育厅资助科研项目(06C121)~~
关键词
控制策略
输出滤波器
开关函数法
有源电力滤波器
数学模型
滤波效果
control strategy
output filter
switch function method
active power filter
mathematical model
filter performer
