基于隧道磁阻传感器测量的过载电流中断保护方法

2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2021-05-17 DOI:10.1109/I2MTC50364.2021.9459894

Changxin Chen, Wenchao Guo, Chenbin Wang, Yifeng Ren, Tiehua Ma

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引用次数: 0

摘要

针对智能电网用户希望在大故障电流条件下能够瞬间断电并保护相关设备的需求，本文提出了基于高灵敏度TMR传感器的过载电流中断保护方法，通过信号处理实现智能电网过载电流中断保护。信号经过一定的电路处理后，触发单片机控制继电器截止，从而实现智能电网的高灵敏度和过载电路保护。通过仿真和实验，对该方法进行了分析和验证，对智能电网设备过载电流断路器的保护具有重要意义。

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Overload Current Interruption Protection Method based on Tunnel Magnetoresistive Sensor Measurement

Aiming at smart grid users who want to be able to instantaneously power off and protect related equipment under large fault current conditions, this paper proposes the overload current interruption protection method based on TMR sensor of high sensitivity, which can realize the smart grid overload current interruption protection through signal processing. After a certain circuit processing the signal, it can trigger the single chip microcomputer to control the relay to cut off, so as to realize the high sensitivity and overload circuit protection of the smart grid. Through simulation and experiment, the method is analyzed and verified, which is great significance to the protection of the overload current circuit breaker of smart grid equipment.

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2021 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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