【摘要】 采用频率响应特性分析方法 ,对典型变数据窗阻抗算法的频域特性以及滤除非周期分量的能力进行了综合比较和分析 .通过数字仿真计算 ,对各算法在实际故障情况下的估计性能进行了研究 .根据各算法的估计性能特点 ,提出了不同算法的自适应综合应用方案 .更多还原

【Abstract】 The frequency performances and dc-offset rejection abilities of several typical variable-window algorithms are evaluated and compared based on the frequency-response analysis method. The algorithms concerned have also been examined by digital simulation tests. Based on the frequency domain and time domain analysis results, several adaptive approaches are proposed, including the adaptive adjustments of the estimation algorithm, starting point of data-window and the fitting model parameter.更多还原