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Current sensor system

A technology of current sensor and rectifier, applied in the direction of measuring current/voltage, instrument, measuring electrical variables, etc., can solve the problems of low measurement accuracy and large volume.

Pending Publication Date: 2022-04-12
平高集团智能电力科技有限公司 +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a current sensor system to solve the problems of large volume and low measurement accuracy of existing electromagnetic current sensors

Method used

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Embodiment Construction

[0022] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0023] The present invention proposes a current sensor system, such as figure 1 and figure 2 As shown, the current sensor includes an electromagnetic coil and a Rogowski coil. Such as figure 1 As shown in , the dark circle represents the electromagnetic coil, and the light circle represents the Rogowski coil. The wire to be tested passes through the electromagnetic coil and the Rogowski coil axis; the Rogowski coil is connected to the signal processing module (Singal Condition) and passed through The signal processing module amplifies and integrates the acquired signal; the electromagnetic coil is connected to the battery management module (Power Management), and supplies power to the signal processing module and the main control module (Processor) through the battery management module; the main control module is used for processing and ...

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Abstract

The invention provides a current sensor system, and belongs to the technical field of current sensors. The system comprises an electromagnetic coil and a Rogowski coil, wherein the electromagnetic coil and the Rogowski coil are arranged on a circuit to be detected in a penetrating manner; the Rogowski coil is connected with the signal processing module and is used for sending the sensed signal to the signal processing module, and the signal processing module is used for amplifying and integrating the sensed current; the electromagnetic coil is connected with the battery management module and is used for converting the electric energy obtained by the battery management module and supplying the converted electric energy to the signal processing module and the main control module; and the main control module is used for processing and outputting the signal output by the signal processing module. According to the current sensor, the electromagnetic coil is adopted for taking electricity, the Rogowski coil is adopted for current detection, the size of the electromagnetic coil can be properly reduced, the size of the current sensor is optimized, the problems that the magnetic field of the electromagnetic coil is easy to saturate and the frequency band is narrow are solved, and the current measurement precision is improved.

Description

technical field [0001] The invention relates to a current sensor system and belongs to the technical field of current sensors. Background technique [0002] As a device for detecting electric energy in the power system, the current sensor has gradually increased the requirements for the detection accuracy of the current sensor with the development of power electronics technology. In the prior art, an electromagnetic transformer is mainly used for current detection. At the same time, this electromagnetic transformer can both detect current and take electricity. In the patent of "Method and System for Obtaining Power Data", the current signal and voltage signal of the power system are collected through the electromagnetic induction wireless transmission transformer, and the required power is provided by the secondary winding of the electromagnetic voltage transformer. This electromagnetic current transformer is composed of a closed iron core and a winding wound on the iron co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00
Inventor 胡龙源王涛吕会妍严鸿鹏郭丰
Owner 平高集团智能电力科技有限公司
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