Das Messen der elektrischen Arbeit - eine Übersicht / Electric energy measurement - a survey

1978 ◽  
Vol 503-513 (JG) ◽  
Author(s):  
Herbert Georg ZÜBLIN ◽  
Fred TSCHAPPU
Keyword(s):  
Electric Energy ◽  
Energy Measurement

scholarly journals Electrical Harmonic Energy Measurement Based on Wavelet Packet Decomposition and Reconstruction Algorithm

2021 ◽  
Author(s):  
Mengshuang Liu ◽  
Xudong Shi ◽  
Chen Yang
Keyword(s):  
Virtual Instrument ◽  
Reactive Power ◽  
Simulation Analysis ◽  
Wavelet Packet ◽  
Electric Energy ◽  
Reconstruction Algorithm ◽  
Energy Measurement ◽  
Fundamental Wave ◽  
Wavelet Packet Decomposition ◽  
Energy Metering

In order to study the accurate measurement of electric energy in complex industrial field, a method of harmonic electric energy measurement based on wavelet packet decomposition and reconstruction algorithm, as well as the calculation formula of harmonic power and the principle of harmonic electric energy measurement are proposed. Using db42 wavelet function to carry out harmonic energy metering simulation analysis, the results show that: The fundamental frequency of the simulation signal is 50 Hz, two-layer wavelet packet transform is adopted, the simulation input signals within 40 fundamental wave cycles are taken, and the sampling frequency fs is 800 Hz. Conclusion: The three-phase harmonic energy metering device based on virtual instrument technology has realized the measurement of each harmonic active power and reactive power, and the accuracy reaches 0.2 s.

scholarly journals Verification Scheme and System Design of Charging Pile Electric Energy Measurement

2019 ◽  
Vol 252 ◽  
pp. 032102
Author(s):  
Xiaohui Li ◽  
Lei Li ◽  
Xiaochen Liu ◽  
Guang Yang ◽  
Qi Zhou
Keyword(s):  
System Design ◽  
Electric Energy ◽  
Energy Measurement ◽  
Verification Scheme

QUALITY OF THE ELECTRIC ENERGY; MEASUREMENT AND ANALYSE METHODS AND SYSTEM

2007 ◽  
Vol 40 (8) ◽  
pp. 300-304
Author(s):  
Ion MIRCEA ◽  
Drd. Eng. Gabriel VLADUT ◽  
Camelia COJOCARU
Keyword(s):  
Electric Energy ◽  
Energy Measurement

The Research of Novel High Voltage Electric Energy Measurement Apparatus Based on Three-Phase Four-Wire Virtual-Ground Theory

2013 ◽  
Vol 341-342 ◽  
pp. 1245-1249 ◽  
Author(s):  
Zhi Shou Zheng ◽  
Li Xin Wang ◽  
Xi Wu Chen ◽  
Wen Dong Deng ◽  
Jia Hai Zhang ◽  
...  
Keyword(s):  
High Voltage ◽  
Electric Energy ◽  
Measurement Instrument ◽  
Energy Measurement ◽  
Advanced Metering Infrastructure ◽  
Ground Theory ◽  
Three Phase ◽  
Advanced Metering ◽  
Site Test ◽  
Test Result

A novel apparatus is introduced in this paper used to measure high voltage electric energy based on three-phase four-wire virtual-ground theory. The virtual-ground design, Faraday shielding technique and Warner DC (Direct Current) self-supply method are integrated in this apparatus based on new I/V, V/V techniques to realize high accuracy, reliability and wide-linear range measuring. The effectiveness of the apparatus has been proved by in-house calibration and on-site test . The test result shows that it can be used in high voltage grid on-site calibration . Its measurement uncertainty can be limited to 0.1% under the condition of PF=1.0~0.8, and can reach 0.15% as PF=0.5. In summary, the apparatus discussed in this paper can be applied as high voltage electric energy measurement instrument to meet the requirement of online metrological verification and calibration. Furthermore, it is very useful for building the system of Advanced Metering Infrastructure (AMI) in smart grid.

scholarly journals Research on the Method of Improving the Quality of Electric Energy Measurement Data

2020 ◽  
Vol 1634 ◽  
pp. 012092
Author(s):  
Bing Sui ◽  
Xiaodong Chen ◽  
Zeng Shou ◽  
Hongzhe Wang ◽  
Zhitong Guo
Keyword(s):  
Measurement Data ◽  
Electric Energy ◽  
Energy Measurement
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