CAJ | 학술논문

在研究阻性有源滤波器(resistive active power filter， R-APF)背景谐波抑制时，发现实际谐波抑制效果弱于理论分析，其原因在于传统 R-APF 谐波抑制方案，没有考虑R-APF 等效输出阻抗对抑制系统背景谐波的影响。为此，提出两种谐波抑制优化方案：考虑 R-APF 等效输出阻抗的影响，重新整定 R-APF 的虚拟导纳；选择多重比例谐振控制器增强特定谐波频率处 R-APF 等效输出阻抗，减弱其对谐波抑制效果的影响。通过仿真和实验验证，所提方案都能更有效的抑制系统背景谐波。
재연구조성유원려파기(resistive active power filter， R-APF)배경해파억제시，발현실제해파억제효과약우이론분석，기원인재우전통 R-APF 해파억제방안，몰유고필R-APF 등효수출조항대억제계통배경해파적영향。위차，제출량충해파억제우화방안：고필 R-APF 등효수출조항적영향，중신정정 R-APF 적허의도납；선택다중비례해진공제기증강특정해파빈솔처 R-APF 등효수출조항，감약기대해파억제효과적영향。통과방진화실험험증，소제방안도능경유효적억제계통배경해파。
ABSTRACT:Based on the study of resistive active power filter (R-APF), it’s found that R-APF can’t achieve so good a damping performance as what’s indicated in theoretical analysis. And this phenomenon results from the fact that traditional R-APF harmonic suppression scheme does not take into account the effect of the equivalent output impedance of R-APF. Therefore, this paper puts forward two optimized harmonic suppression strategies: modifying the virtual admittance of R-APF according to the influence of the equivalent output impedance of R-APF; or employing multiple proportional resonant controller to enhance the equivalent output impedance of R-APF. Finally, simulation and experimental results are presented to verify the effectiveness of the proposed strategies.