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    • 2. 发明授权
    • Partial discharge signal normalization
    • 部分放电信号归一化
    • US09372221B1
    • 2016-06-21
    • US14838884
    • 2015-08-28
    • Adam Bierman
    • Adam Bierman
    • H03K19/00H03K19/173G01R31/14H03K19/177G01R31/12
    • G01R31/14G01R31/1245H03K19/17764
    • The disclosure herein relates to a field-programmable gate array for detecting and normalizing partial discharges in a digital signal. The field-programmable gate array includes a filter that receives the digital signal and isolates high frequency information from the digital signal. The field-programmable gate array then normalizes the high frequency information by a compensation value to produce a normalized signal. Further, a comparator of the field-programmable gate array can determine whether the normalized signal exceeds a threshold input. In turn, a counter of the field-programmable gate array increments a counter value in response to each determination that the high frequency information exceeds the threshold input.
    • 本文的公开内容涉及用于检测和归一化数字信号中的部分放电的现场可编程门阵列。 现场可编程门阵列包括接收数字信号并从数字信号隔离高频信息的滤波器。 现场可编程门阵列然后通过补偿值对高频信息进行标准化,以产生归一化信号。 此外,现场可编程门阵列的比较器可以确定归一化信号是否超过阈值输入。 反过来,响应于高频信息超过阈值输入的每个确定,现场可编程门阵列的计数器递增计数器值。
    • 4. 发明申请
    • PARTIAL DISCHARGE DETECTION BANDWIDTH EXPANSION THROUGH INPUT SIGNAL ALIASING
    • 通过输入信号消除部分放电检测带宽扩展
    • US20170059642A1
    • 2017-03-02
    • US14836180
    • 2015-08-26
    • Adam BiermanCraig Powers
    • Adam BiermanCraig Powers
    • G01R31/12
    • G01R31/1263
    • A partial discharge detection board includes a voltage divider configured to attenuate a voltage of a reflected signal. A buffer is connected to the voltage divider. The buffer attenuates frequencies of the reflected signal that are greater than an upper cutoff frequency. An analog-to-digital converter is connected to the buffer. The analog-to-digital converter receives portions of the reflected signal up to the upper cutoff frequency, and the analog-to-digital converter converts the reflected signal from an analog domain to a digital domain. A filter is connected to the analog-to-digital converter. The filter attenuates frequencies of the reflected signal that are less than a lower cutoff frequency. A comparator is connected to the filter. The comparator compares the voltage of the reflected signal to a reference voltage. A counter is connected to the comparator. The counter increments when the voltage of the reflected signal is greater than the reference voltage.
    • 局部放电检测板包括被配置为衰减反射信号的电压的分压器。 缓冲器连接到分压器。 缓冲器衰减大于上限截止频率的反射信号的频率。 模数转换器连接到缓冲器。 模数转换器接收反射信号的高达截止频率的部分,并且模数转换器将来自模拟域的反射信号转换为数字域。 滤波器连接到模数转换器。 滤波器衰减小于较低截止频率的反射信号的频率。 比较器连接到滤波器。 比较器将反射信号的电压与参考电压进行比较。 计数器连接到比较器。 当反射信号的电压大于参考电压时,计数器递增。