| 引用本文: | 王 盼,刘 飞,查晓明.基于有源阻尼的并联有源滤波器输出LCL滤波器设计[J].电力自动化设备,2013,33(4): |
| WANG Pan,LIU Fe,ZHA Xiaoming.Design of output LCL filter based on shunt APF with active damping[J].Electric Power Automation Equipment,2013,33(4): |
|
| 摘要: |
| 提出一种基于并联型有源电力滤波器的输出LCL滤波器的设计方法。该方法在满足电流跟踪快速性、电流纹波最大允许值等基本条件下，选取了总电感值；并由基波无功损耗约束了电容量上限。在此基础上，考虑到开关次谐波电流衰减率以及谐振频率的制约，综合选取了构成总电感的两部分L1和L2的值及电容量。为避免LCL滤波器发生谐振，采用了电容电流反馈的有源阻尼法，通过设计反馈系数，有效抑制了低次谐波的振荡。最后基于采用重复学习控制策略的并联型有源电力滤波器，通过PSCAD进行仿真验证。仿真结果表明了LCL滤波器的优越性以及所提设计方法的有效性。 |
| 关键词: 有源电力滤波器 LCL滤波器 有源阻尼 谐振 反馈 仿真 |
| DOI： |
| 分类号: |
| 基金项目:湖北省自然科学基金资助项目（2011CDB263）；中央高校基本科研业务费专项资金资助项目（207274591） |
|
| Design of output LCL filter based on shunt APF with active damping |
|
WANG Pan1,2, LIU Fe2, ZHA Xiaoming2
|
|
1.Wuhan Electric Power Technical College，Wuhan 430079，China;2.School of Electrical Engineering，Wuhan University，Wuhan 430072，China
|
| Abstract: |
| A design of output LCL filter based on shunt APF with active damping is proposed. It selects the total inductance with the consideration of current tracking rapidity，allowable maximum current ripple，etc. and sets the upper limit of capacitance by the loss of fundamental reactive power，based on which，the L1 and L2 of total inductance and the capacitance are selected with the consideration of switching harmonic current decay rate and the constraint of resonant frequency. The active damping method based on capacitor current feedback is applied to avoid the LCL filter resonance and the feedback factor is designed to effectively suppress the suborder harmonic vibration. The shunt APF with repetitive learning control strategy is simulated with PSCAD and results show its superiority and effectiveness. |
| Key words: active filters LCL filter active damping resonance feedback computer simulation |
