公开(公告)号：US09000961B2

公开(公告)日：2015-04-07

申请号：US14085276

申请日：2013-11-20

Applicant: ABB Technology AG

Inventor： Joris Pascal ,  Stéphane Isler

IPC: H03M3/02 ,  H03M1/10 ,  H03M1/06 ,  H03M3/00

CPC classification number: H03M1/0609 ,  H03M1/1004 ,  H03M3/382 ,  H03M3/43

Abstract: An arrangement for reading out an analog voltage input signal includes an input applying the input signal thereto, and a reference unit generating an analog reference voltage. To perform online self-calibration, the arrangement includes a superposition unit generating a combined analog signal by superimposing the analog reference voltage onto the input signal, a converting unit converting the combined analog signal into a one-bit serial data stream at a conversion sampling rate, and a decomposition unit, which includes at least two digital filters configured to generate from the serial data stream two corresponding digital signals at different data rates, which can be less than the conversion sampling rate. Two data processing units calculate from the corresponding digital signal a digital input voltage representing the input signal and a digital reference voltage representing the analog reference voltage or a disturbance voltage signal representing parasitic voltage components introduced by the superposition unit, respectively.

Abstract translation: 用于读出模拟电压输入信号的装置包括施加输入信号的输入端和产生模拟参考电压的参考单元。 为了执行在线自校准，该装置包括叠加单元，通过将模拟参考电压叠加到输入信号上产生组合的模拟信号，转换单元以转换采样率将组合的模拟信号转换成1位串行数据流 以及分解单元，其包括至少两个数字滤波器，所述至少两个数字滤波器被配置为从串行数据流生成两个不同数据速率的对应的数字信号，其可以小于转换采样率。 两个数据处理单元从对应的数字信号计算表示输入信号的数字输入电压和表示模拟参考电压的数字参考电压或表示由叠加单元引入的寄生电压分量的干扰电压信号。

公开(公告)号：US09557350B2

公开(公告)日：2017-01-31

申请号：US14512809

申请日：2014-10-13

Applicant: ABB TECHNOLOGY AG

Inventor： Joris Pascal ,  Franz Zurfluh

IPC: G01R15/18 ,  G01R19/00 ,  G01R35/00

CPC classification number: G01R15/181 ,  G01R19/0092 ,  G01R35/005

Abstract: An arrangement for measuring a current with a Rogowski type current transducer and transducer electronics. The current transducer has a primary conductor winding for carrying the rated current to be measured, and a secondary conductor winding. The secondary conductor winding adapted to induce a voltage signal VS′ between a pair of second terminals. The current transducer having a third conductor winding adapted to receive a calibration current signal. The voltage signal VS′ contains a coil sensitivity S and is a superposition of a rated current voltage signal and an additional calibration signal. The transducer electronics being adapted to amplify both the current voltage signal and the calibration signal in the same amplifier and divide the amplified current voltage signal by that part of the amplified calibration signal that contains the coil sensitivity and the gain.

Abstract translation: 用Rogowski型电流传感器和换能器电子装置测量电流的装置。 电流传感器具有用于承载待测量的额定电流的初级导体绕组和次级导体绕组。 次级导体绕组适于在一对第二端子之间感应电压信号VS'。 电流传感器具有适于接收校准电流信号的第三导体绕组。 电压信号VS'包含线圈灵敏度S，并且是额定电流电压信号和附加校准信号的叠加。 换能器电子器件适于放大同一放大器中的当前电压信号和校准信号，并将放大的电流电压信号除以包含线圈灵敏度和增益的放大校准信号的那部分。

公开(公告)号：US09507006B2

公开(公告)日：2016-11-29

申请号：US14512736

申请日：2014-10-13

Applicant: ABB TECHNOLOGY AG

Inventor： Joris Pascal ,  Rolf Disselnkötter ,  Franz Zurfluh ,  Bernhard Deck

IPC: G01R35/00 ,  G01R15/18 ,  G01R19/00

CPC classification number: G01R35/005 ,  G01R15/181 ,  G01R19/0092

Abstract: An exemplary method for calibrating a current transducer of the Rogowski type including a Rogowski coil sensor and an electronic device is performed by determining and correcting the sensitivity of the current transducer of the Rogowski type through the measurement of the self-inductance LRCCT of the coil using the electronic device.

Abstract translation: 通过使用线圈的自感LRCCT的测量来确定和校正Rogowski型的电流传感器的灵敏度，来执行用于校准包括Rogowski线圈传感器和电子设备的Rogowski型电流传感器的示例性方法， 电子设备。

公开(公告)号：US09300314B2

公开(公告)日：2016-03-29

申请号：US14054921

申请日：2013-10-16

Applicant: ABB TECHNOLOGY AG

Inventor： Joris Pascal ,  Richard Bloch

IPC: H03M1/12 ,  H03M1/10

CPC classification number: H03M1/12 ,  H03M1/1004 ,  H03M1/1019 ,  H03M1/1028 ,  H03M1/129

Abstract: An arrangement for reading out an analog voltage signal includes a voltage signal input for applying the analog voltage signal thereto, a reference unit configured to generate an analog reference voltage, and a converting unit configured to convert an analog input signal into a digital output signal. To enable online self-calibration of the arrangement, the arrangement includes a superposition unit configured to receive the analog voltage signal and the analog reference voltage. The superposition unit includes a modulation unit configured to generate a modulated reference voltage from the analog reference voltage. The superposition unit is configured to generate a combined analog signal by superimposing the modulated reference voltage onto the analog voltage signal, and to forward the combined analog signal to the converting unit.

Abstract translation: 用于读出模拟电压信号的装置包括用于向其施加模拟电压信号的电压信号，被配置为产生模拟参考电压的参考单元和被配置为将模拟输入信号转换为数字输出信号的转换单元。 为了实现布置的在线自校准，该布置包括被配置为接收模拟电压信号和模拟参考电压的叠加单元。 叠加单元包括被配置为从模拟参考电压产生调制参考电压的调制单元。 叠加单元被配置为通过将调制的参考电压叠加到模拟电压信号上来生成组合的模拟信号，并将组合的模拟信号转发到转换单元。