有源电力滤波器的改进无差拍控制方法  

A Method of Improved Deadbeat Control for Active Power Filter

作　　者：丁星星[1] 马炜程 汪磊[1] 

机构地区：[1]合肥工业大学,电气与自动化工程学院,安徽合肥230009

出　　处：《电力电子技术》2017年第2期39-42,共4页Power Electronics

摘　　要：采用一种改进的无差拍控制器作为有源电力滤波器(APF)的电流跟踪控制器。在谐波电流变化速度较快时,传统无差拍控制器因其响应速度的限制,难以及时跟踪给定电流。针对谐波电流变化较快的情况,提出了一种电压增量修正算法,补偿输出电压增量;其次,针对可能存在的采样随机噪声,提出了一种电流校正算法,有利于抑制采样和数字处理过程中的随机噪声对电流跟踪性能的影响。最后,在实验室搭建了APF的实验平台,进行了相关实验,验证了所提控制方法的可行性。An improved deadbeat controller used as current tracking controller for the active power fiher（APF） is adopted. Because of the limitation of response speed, the traditional deadbeat controller can not track the given current recently. When the harmonic current changes rapidly, a voltage increment modified algorithm is proposed to compensate output voltage increment;Next, according to possible sampling random noise, a current correction algorithm is proposed to sup- press the random noise influence for the current tracking performance in the process of sampling and digital processing. Finally, the experimental setup of APF is built in the laboratory, and then the effectiveness of this method is verified.

关 键 词：有源电力滤波器 无差拍控制 电压增量修正 电流校正 

分 类 号：TM713.8[电气工程—电力系统及自动化]