有源滤波器电流预测滞环控制  

Based on Current Predict of Active Power Filter Hysteresis Control

作　　者：孙蓉[1] 袁晓东[1] 周宇浩[2] 葛乐[2] 杨志超[2] 

机构地区：[1]江苏省电力公司电力科学研究院,江苏南京211103 [2]南京工程学院电力工程学院,江苏南京211167

出　　处：《江苏电机工程》2015年第5期54-58,共5页Jiangsu Electrical Engineering

摘　　要：为改善有源滤波器(APF)因采样率较低导致的控制误差,提出一种基于电流预测的滞环控制方法。分析传统滞环控制产生误差的原因,基于APF的动力学方程构建输出电流预测模型,利用线性插值预测指令电流,分析电流预测滞环控制工作特性。基于NI公司的Compact RIO平台设计APF控制器,实验对比分析了该方法与传统滞环控制的效果,验证了该方法改善APF控制误差的有效性。In order to reduce the APF control error caused by sampling rate, a method of predictive hysteresis control based on current prediction is proposed. The cause of hysteresis control error is analyzed. On the basis of the active filter dynamics model, output current prediction model is established, the target current is predicted by linear interpolation, and the working principle of this control method is introduced. A controller system is designed based on the Compact RIO. The experimental result comparisons between the proposed method and traditional hysteresis control show that the proposed method is effective in reducing control error.

关 键 词：有源滤波器 电流预测 滞环控制 控制误差 

分 类 号：TM761[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]