FENG Xiao-hua, WU Zheng-mao, ZHANG Cheng-xue. Analysis of Three Modified Algorithms for On-line Measurement of tanδ[J]. High voltageapparatus, 2005, (1): 4-5+9.
FENG Xiao-hua, WU Zheng-mao, ZHANG Cheng-xue. Analysis of Three Modified Algorithms for On-line Measurement of tanδ[J]. High voltageapparatus, 2005, (1): 4-5+9.DOI:
介损在线监测的3种改进谐波分析法的分析
摘要
谐波分析法用于介损在线测量时
由于系统频率波动
难以满足理想的同步采样
从而产生泄漏误差影响基波相角测量的准确度。为减小泄漏误差
提高介损测量准确度
通过加窗插值
修正理想采样频率和采取偏移频率补偿对原算法进行了改进。理论推导和仿真结果都验证了改进方法的有效性。
Abstract
When applying harmonics analysis approach to measuring tan ndow
algorithm of modified frequency and algorithm of frequency compensation. Theory derivation and simulation results verify that the modified algorithms have higher accuracy than the original ones.