Research of wireless calibration system for capacitive equipment online monitoring device

2017 ◽  
Author(s):  
Ze-Zheng Zhou ◽  
Qing Li ◽  
Zhi-Peng Zhao ◽  
Hong-Yan Zhan ◽  
Jin-Long Gong
Keyword(s):  
Online Monitoring ◽  
Monitoring Device ◽  
Calibration System

Design of an Overvoltage Online Monitoring Device Based on Optical Fiber Voltage Sensor

2014 ◽  
Vol 978 ◽  
pp. 72-77
Author(s):  
Hai Chao Guo
Keyword(s):  
Data Analysis ◽  
Optical Fiber ◽  
Data Acquisition ◽  
Virtual Instrument ◽  
Physical Simulation ◽  
Online Monitoring ◽  
Sampling Rate ◽  
Fault Analysis ◽  
Voltage Sensor ◽  
Monitoring Device

An overvoltage online monitoring and data analysis device based on optical fiber voltage sensor is designed. The device adopts BGO crystal as sensing head, optical fiber as transmission medium. Four A/D converters with sampling rate of 20 MHz are equipped in Data acquisition unit to achieve four-channel concurrent high-speed data acquisition. Virtual instrument LabVIEW is used to complete data analysis and processing. Compared with other voltage monitoring device, it has good anti-interference performance and fast transient response. Physical simulation experiments prove that the system can meet the requirements of overvoltage monitoring. Its application provides accurate data for power system fault analysis and insulation coordination design.

A Power Quality Online Monitoring Device Based on PowerPC and DSP

2013 ◽  
Vol 341-342 ◽  
pp. 1384-1388
Author(s):  
Qing Yu Wang ◽  
Qing Qing Zhang ◽  
Gao Feng Zhang ◽  
Yi Zhang ◽  
Lan Xu Wu
Keyword(s):  
Power Quality ◽  
Large Scale ◽  
Online Monitoring ◽  
National Standards ◽  
Monitoring Device ◽  
Device Structure ◽  
Power Quality Monitoring ◽  
Processing Ability ◽  
Embedded Power ◽  
Dsp Systems

According to the practical requirements of setting up large scale power quality monitoring systems and monitoring power quality in digital substations, an embedded power quality online monitoring device based on PowerPC and DSP is realized. The device structure, the overall hardware design, the PowerPC and the DSP systems are introduced. The design scheme based on PowerPC and DSP can take full advantages of the fast data calculation speed of DSP and the strong network processing ability of PowerPC. The test result of the measurement accuracy shows that the device can meet the power quality indicators measuring requirements of national standards.

Measurement Accuracy Evaluation of Power Quality Online Monitoring Device Based on LSTM

2021 ◽  
Author(s):  
Qing Li ◽  
Xinyan Zhang ◽  
Yi Li ◽  
Chunlei Jiao ◽  
Bing Hou ◽  
...  
Keyword(s):  
Power Quality ◽  
Measurement Accuracy ◽  
Online Monitoring ◽  
Accuracy Evaluation ◽  
Monitoring Device
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