A new frequency correction method was obtained,suitable for the situation of high-order harmonic generation,and this method was proved by two simulation experiments.
采用相位差法对工频频率测量进行了研究,推出了频率校正的计算公式;研究了窗函数和窗长度的选择对校正精度和响应时间的影响,在窗长度足够长的情况下,采用布莱克曼窗、凯泽窗有很高的校正精度;为提高响应速度,推导出了窗长为一个工频周期的傅立叶系数的计算公式,得出只含单频成分时,仍能够采用相位差法对频率进行校正,而当含有高次谐波时不宜直接采用相位差法的结论;还得到一种新的频率校正方法,该方法适合含有高次谐波的情况;通过给出的两种模型进行仿真实验,验证了理论结果的正确性。
Study on Fast Main Frequency-Correction Parameters Based on Phase Difference Method
基于相位差法的快速工频频率校正的研究
Study on the frequency offset correction of TDD-LTE synchronization signal based on ZC sequence
基于ZC序列的TDD-LTE同步信号频率校正研究
Slip Frequency Correction Method Base on Rotor Flux q Axis Component for Induction Machine Indirect Vector Control System
基于转子磁链q轴分量的异步电机间接矢量控制转差频率校正
video frequency/IF/RF pre-correction
视频、中频、射频预校正
APFC Control Circuit Design of Inverter Air-Conditioner
变频空调中功率因数校正的控制电路设计
A Low Cost APFC of AC-DC-AC Converter
低成本变频调速器功率因数校正的改进
Array Calibrating Methords using the of Frequency Response
LTI系统的频率响应在阵列校正中的应用
Power Factor Correction of the DC-inverter Compressor Driver
直流变频压缩机驱动器的功率因数校正
Application of Windowing Phase Difference Correcting Algorithm in Frequency Measurements of Electric Network Measurements
加窗相位差校正算法在电网频率测量中的应用
Wave equation datum correction in frequency-wavenumber (f-k) domain.
在频率—波数域实现波动方程基准面校正
Cascaded Approach for Correcting Ionospheric Frequency Modulation in HF Sky-Wave Radars
校正高频天波雷达电离层频率调制的级联方法(英文)
lognormal cumulative frequency
对数正态累积频率图
Design of High Frequency Switch Power with APFC and Soft Switch;
具有功率因数校正和软开关的高频开关电源的设计
Analysis of medium-frequency oscillation in the Boost power factor correction converter with average current mode control
平均电流控制型Boost功率因数校正变换器中的中频振荡现象分析
Occurring with normal or healthy frequency.
正常频率的按正常或健康的频率发生的
quartz crystal calibration equipment
石英晶体频率校准仪
field tilt correctio
场频锯齿形波校正信号
The voltages set up are of normal operating frequency.
由此引起的过电压频率通常为正常的工作频率。
