有源滤波器电流跟踪控制的一种新方法  

New Method for Current Tracking Control of Active Power Filter

作　　者：周柯[1] 罗安[1] 唐杰[1] 夏向阳[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南省长沙市410082

出　　处：《电力系统自动化》2006年第1期60-63,93,共5页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(60474041)湖南省重点攻关项目([04]-100)。~~

摘　　要：在采用有源电力滤波器(APF)消除谐波的过程中,由于滤波器的检测精度有限、指令电流计 算延时和输出滤波器相移等因素的影响,传统的PI控制滤波效果不够理想。针对APF电流跟踪 控制问题,提出了一种基于PI型学习律的迭代学习控制算法,通过实施遗忘因子学习律增强系统 鲁棒性的同时,引入了在最优目标选择下模糊参考电流误差的D型学习律前馈环节,提高了系统 的跟踪精度。仿真与现场运行结果都证明了该控制方法具有谐波电流跟踪效果好、计算量小、易于 工程实现等特点。Due to the influences of detection precision, time delay of instruction current calculation and phase displacement of output filter, harmonic elimination using active power filter （APF） with traditional PI controller is not ideal. A PI-type iterative learning control algorithm for APF current-tracking control is presented, in which, a forgetting factor is used to enhance the systemic robustness, and a feed forward using D-type learning law based on the fuzzy-inferring referenced current error under the optimal object is introduced to improve APF＇s dynamic performance. The proposed algorithm has a good tracking effect, a small computation capacity and is easy for engineering implementation. The simulation and running results all validate its value.

关 键 词：有源电力滤波器 电流跟踪控制 PI迭代学习 模糊推理 

分 类 号：TN713.8[电子电信—电路与系统]