摘要
利用单子带重构改进小波变换算法克服了传统小波变换算法存在频率混叠现象的固有缺陷,取得了精确的指令电流值。在负荷电流灰色预测和APF超前指令电流生成方面,确定了适合APF实验系统的灰色预测参数。负荷突变条件下的仿真分析表明,小波变换-灰色预测控制APF控制方面可有效、快速地检测出APF中的谐波电流,并有效地补偿了系统自身固有延时。为电力系统谐波检测和抑制提供了一种新的思路。
This paper uses the Single-band Reconstruction advantaged Wavelet Transform to restrain the frequency aliasing,and it has got accurate minor current.As for gray prediction of load current and formation of APF leading current instruction,the paper determines gray forecast parameters for APF experimental system.The simulation indicates that the method based on Wavelet Transform & Gray Prediction can rapidly attain accurate harmonic current under the condition of mutation load.And it can effectively compensate...
出处
《粮食流通技术》
2008年第3期34-37,共4页
Grain Distribution Technology
