摘要
为提升介损角测量算法对干扰因素的抑制效果,提出了一种结合自适应陷波滤波器(ANF)的谐波分析法。ANF能有效滤除电压、电流波形中的整次谐波、间谐波和噪声分量,准确实现基波分量的跟踪及基波频率的提取。谐波分析法基于ANF提取的基波分量和基波频率进行介损角计算。仿真结果表明,结合ANF的谐波分析法在频率波动、谐波分量变化、白噪声影响、介损角真值变化、初相角变化等情况下都能取得较高测量精度。
A harmonic analysis method based on ANF（Adaptive Notch Filter） is proposed interference suppression of dielectric loss angle measurement. ANF can effectively filter harmonics,inter-harmonics and noise contained in the voltage/current waveform,track component calculated based on component to improve the out the integer the fundamental and accurately extract the fundamental frequency,with which,the dielectric loss angle is by harmonic analysis method. Simulative result indicates that,the method of harmonic analysis ANF has higher measurement precision in the conditions of frequency fluctuation,harmonic variation,white noise ,dielectric loss angle variation,initial phase angel variation and so on.
出处
《电力自动化设备》
EI
CSCD
北大核心
2013年第9期100-104,共5页
Electric Power Automation Equipment
关键词
容性设备
介质损耗角
ANF
谐波分析
滤波器
仿真
capacitive apparatus
dielectric loss angle
ANF
harmonic analysis
electric filters
computersimulation
