摘要
针对HVDC(直流高压)系统直流侧电网里的谐波,提出了基于罗氏线圈的测量方法,并设计了相应的电路。谐波分析通常采用FFT算法,为了加快FFT的运算速度,需要对280个采样点进行插值处理。本文用C语言采用拉格朗日算法实现了插值处理,并对程序进行了可行性的验证,最后对该程序进行了误差分析。
A way of harmonic measurement based on Rogowski coil in HVDC system is introduced in this paper, the corresponding circuit is designed. Harmonic analysis usually adopts FFT algorithm, the 280 Sample points need interpolation management, which make FFT faster. Lagrange interpolation program is carry out with C language. The feasibility of the program is proved, and the error is analyzed.
出处
《电测与仪表》
北大核心
2006年第1期9-11,共3页
Electrical Measurement & Instrumentation
