摘要
为解决托卡马克磁体电源系统中出现的低频谐波检测问题,研究了基于可调参数Q的F42N150单频模拟陷波器和椭圆数字带通滤波器的混合检测算法。通过边界优化有效剔除干扰基波及5次谐波,实现有效的频谱分离。利用MATLAB优化了为设计过程进行,使用基于DSP的数字分析系统进行了试验验证,验证了检测算法的正确性和有效性。
A hybrid detection algorithm based on F42N150 single-frequency analog notch filter with Q-factor and elliptic digital bandpass filter is analyzed to solve the detection problem of low-frequency harmonics in tokamak power supply.The fundamental and 5 th-order harmonic,viewed as interference signals,can be eliminated by boundary optimization of the elliptic digital filter to achieve effective spectrum separation.The design process is optimized by simulation with MATLAB and the validity of the detection algorithm is verified by experiments with digital analysis system based on digital signal processing(DSP).
作者
田贇祥
许留伟
张俊敏
李俊
吴亚楠
沈显顺
卢晶
TIAN Yun-xiang;XU Liu-wei;ZHANG Jun-min;LI Jun;WU Ya-nan;SHEN Xian-shun;LU Jing(Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031;University of Science and Technology of China,Hefei 230026;South-CenterUniyersity for Nationalities,Wuhan 430074)
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
2021年第1期78-84,共7页
Nuclear Fusion and Plasma Physics
基金
国家自然科学基金(5170070730)
中国科学院合肥物质科学研究院院长基金(YZJJ2019QN8)。
关键词
谐波抑制
单频陷波器
椭圆数字带通滤波器
边界优化
低频谐波
Harmonic suppression
Single-frequency notch filter
Elliptic digital band pass filter
Boundary optimization
Low-frequency harmonics
