摘要
对一种特殊的高精度、低纹波大功率直流稳定电源的直流有源滤波器的主电路结构和抑制纹波的原理进行了分析 ,提出了检测纹波电压的直流有源滤波器控制方法 .该方法通过检测负载的纹波电压来控制有源滤波器的输出 ,从而降低了负载电流纹波 .这种方法的显著优点是 :在对传感器和电路元件精度要求不高的情况下 ,非常容易实现大功率直流稳定电源的低纹波要求 .对一台实际应用的工业装置的测试表明 ,其电流纹波系数达到了 1× 10 - 5.
The main circuit configuration of DC active power filter used in a special high precision, low ripple and large power DC stable power supply and its basic concept for suppression of harmonics are analyzed, and the control strategy of DC active power filter with ripple voltage detection is presented. The advantage of this control strategy is easy to meet the requirements of low current ripple in DC stable power supply while the precision of the transducer and circuit components is not strictly requested. Tests of a practical industrial device with the DC active power filter show that its ripple achieves 1×10 -5 .
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2001年第12期1211-1214,1235,共5页
Journal of Xi'an Jiaotong University
基金
国家自然科学基金重点资助项目(5 9737140 )