-
1.发明授权Method and apparatus of adaptively cancelling a fundamental frequency of an analog signal 有权方法和装置用于将模拟信号的基频的自适应消除
公开(公告)号：EP2408107B1
公开(公告)日：2017-03-08
申请号：EP11005683.5
申请日：2011-07-12
申请人： Eaton Corporation
CPC分类号： H03H21/0021 , H03H17/0289 , H03H2021/0049 , H03H2021/007 , H03H2021/0098
-
2.发明公开Method and apparatus of adaptively cancelling a fundamental frequency of an analog signal 有权方法和装置用于将模拟信号的基频的自适应消除
公开(公告)号：EP2408107A3
公开(公告)日：2015-05-27
申请号：EP11005683.5
申请日：2011-07-12
申请人： Eaton Corporation
CPC分类号： H03H21/0021 , H03H17/0289 , H03H2021/0049 , H03H2021/007 , H03H2021/0098
摘要： A system (40) includes a first powered apparatus (42) having a first analog signal (16) with a fundamental frequency (ω o ); and a second apparatus (44) providing load diagnostics or power quality assessment of the first apparatus (42) from a second digital signal (I F (n)). The second apparatus (44) includes an input (46) of the first analog signal, an output (48) of the second digital signal (I F (n)), a processor (22), an adaptive filter (50) executed by the processor, a digital-to-analog converter (20), and an analog-to-digital converter (10). The adaptive filter routine outputs a third digital signal (y(n)) as a function of the second digital signal (I F (n)) and plural adaptive weights (4,6). The digital-to-analog converter inputs the third digital signal (y(n)) and outputs a fourth analog signal (I o est(t)) representative of an estimate of a fundamental frequency component (I o (t)) of the first analog signal (16). The analog-to-digital converter inputs a difference (I(t) - I o est(t)) between the first and the fourth analog signals (I o est(t)), and outputs the second digital signal (I F (n)) representative of the first analog signal with the fundamental frequency component removed.
-
3.发明公开Method and apparatus of adaptively cancelling a fundamental frequency of an analog signal 有权方法和装置用于将模拟信号的基频的自适应消除
公开(公告)号：EP2408107A2
公开(公告)日：2012-01-18
申请号：EP11005683.5
申请日：2011-07-12
申请人： Eaton Corporation
CPC分类号： H03H21/0021 , H03H17/0289 , H03H2021/0049 , H03H2021/007 , H03H2021/0098
摘要： A system (40) includes a first powered apparatus (42) having a first analog signal (16) with a fundamental frequency (ω o ); and a second apparatus (44) providing load diagnostics or power quality assessment of the first apparatus (42) from a second digital signal (I F (n)). The second apparatus (44) includes an input (46) of the first analog signal, an output (48) of the second digital signal (I F (n)), a processor (22), an adaptive filter (50) executed by the processor, a digital-to-analog converter (20), and an analog-to-digital converter (10). The adaptive filter routine outputs a third digital signal (y(n)) as a function of the second digital signal (I F (n)) and plural adaptive weights (4,6). The digital-to-analog converter inputs the third digital signal (y(n)) and outputs a fourth analog signal (I o est(t)) representative of an estimate of a fundamental frequency component (I o (t)) of the first analog signal (16). The analog-to-digital converter inputs a difference (I(t) - I o est(t)) between the first and the fourth analog signals (I o est(t)), and outputs the second digital signal (I F (n)) representative of the first analog signal with the fundamental frequency component removed.
-
-
搜索结果
3 条记录 (耗时 0.009 秒)
