Single-Phase Energy Metering Chip with Built-in Calibration Function

2015 ◽  
Vol 9 (8) ◽  
pp. 3103-3120
Keyword(s):  
Single Phase ◽  
Calibration Function ◽  
Energy Metering

A Single-Phase Energy Metering SoC with IAS-DSP and Ultra Low Power Metering Mode

2013 ◽  
pp. 169-195
Author(s):  
Yan Zhao ◽  
Shupeng Zhong ◽  
Kun Yang ◽  
Changyou Men ◽  
Nianxiong Nick Tan ◽  
...  
Keyword(s):  
Low Power ◽  
Single Phase ◽  
Ultra Low Power ◽  
Energy Metering ◽  
Power Metering

Whole Simulation of Single Phase Energy Metering Chip

2014 ◽  
Vol 1049-1050 ◽  
pp. 605-608
Author(s):  
Chun Yu Wang ◽  
Hai Bo Yu ◽  
Ying Hui Xu ◽  
Min Lei ◽  
Jia Liu
Keyword(s):  
Single Phase ◽  
Simulation Studies ◽  
Measurement Property ◽  
Pass Filter ◽  
Low Pass Filter ◽  
The Core ◽  
Simulink Model ◽  
Energy Metering ◽  
Low Pass ◽  
High Pass

Metering chip is the core of electrical meter. The accuracy of metering chip affects the measurement property of electrical meter, so it’s necessary to study the behavior of it. The simulation studies of metering chip are mostly based on part sections of it, but lack the whole simulation model. This paper proposes a Simulink model of whole metering chip based on certain one-phase metering chip by designing the ADC, high pass filter (HPF), low pass filter (LPF), and so on, and make simulation of this model. The result shows that the accuracy of this model is about 0.1%, which verifies the effectiveness of it.

Error Calibration of Three-Phase Method for Combined Transformer

2014 ◽  
Vol 986-987 ◽  
pp. 1821-1825
Author(s):  
Bing Ai ◽  
Qiang Shi
Keyword(s):  
Single Phase ◽  
Power Grid ◽  
Electric Energy ◽  
Large Error ◽  
Phase Method ◽  
Experimental Platform ◽  
Three Phase ◽  
Energy Metering ◽  
Error Calibration

Three-phase combined transformer has a large number of application to special energy metering in power grid, its performance is directly related to the accuracy of electric energy metering. So it is necessary to ensure its performance and accuracy. It rules that three-phase combined transformer should be calibrated with three-phase method, but most of metrology departments calibrate three-phase combined transformer in single-phase method. Based on the mechanism of the three-phase transformer, single-phase method and three-phase method had been compared on three-phase transformer experimental platform. The result shows that it would be large error when the three-phase transformers are calibrated with single-phase method. Three-phase transformer calibration should be operated with three-phase method.

scholarly journals Single-phase Energy Metering Circuit Applied in Food System Based on ADE7755 Chip

2016 ◽  
Vol 10 (3) ◽  
pp. 185-188
Author(s):  
Yu Qiong-Fang ◽  
Shi Zhina ◽  
Dong Yangmei ◽  
Dong Ai-Hua
Keyword(s):  
Single Phase ◽  
Food System ◽  
Energy Metering

Design of Multi-Route Intelligence Electric System

2014 ◽  
Vol 716-717 ◽  
pp. 1207-1211
Author(s):  
Lin Jing Wang ◽  
Pei Jiang Zhang
Keyword(s):  
Single Phase ◽  
Electric Energy ◽  
Hardware Design ◽  
Control Methods ◽  
Reliable Operation ◽  
Electric System ◽  
Actual Application ◽  
Energy Metering ◽  
High Intelligence ◽  
And Control

For the low management of current collective electricity, this paper designs multi-route intelligent electric system, and introduces the soft and the hardware design of the system in detail. The system uses STC enhanced SCM as the control core and communication, based on BL0932B chip, designs single phase bidirectional power electric energy metering module, and uses 485 bus and GSM module as communication and control methods. The actual application shows that the system has high intelligence, reliable operation, achieving the desired effect.

Influence of Heat Treatments on Microstructures in an Fe-Co-V Alloy

1974 ◽  
Vol 32 ◽  
pp. 512-513
Author(s):  
S. Mahajan ◽  
M. R. Pinnel ◽  
J. E. Bennett
Keyword(s):  
Single Phase ◽  
Alloy Composition ◽  
Supersaturated Solid Solution ◽  
Cell Formation ◽  
Heat Treatments ◽  
Air Cooling ◽  
Iced Brine ◽  
Transmission Electron ◽  
The Matrix ◽  
Bcc Structure

The microstructural changes in an Fe-Co-V alloy (composition by wt.%: 2.97 V, 48.70 Co, 47.34 Fe and balance impurities, such as C, P and Ni) resulting from different heat treatments have been evaluated by optical metallography and transmission electron microscopy. Results indicate that, on air cooling or quenching into iced-brine from the high temperature single phase ϒ (fcc) field, vanadium can be retained in a supersaturated solid solution (α2) which has bcc structure. For the range of cooling rates employed, a portion of the material appears to undergo the γ-α2 transformation massively and the remainder martensitically. Figure 1 shows dislocation topology in a region that may have transformed martensitically. Dislocations are homogeneously distributed throughout the matrix, and there is no evidence for cell formation. The majority of the dislocations project along the projections of <111> vectors onto the (111) plane, implying that they are predominantly of screw character.

Raman And Fluorescence Spectra Observed in Laser Microprobe Measurements of Several Compositions in the Ln-Ba-Cu-O System

1990 ◽  
Vol 48 (2) ◽  
pp. 278-279
Author(s):  
Edgar S. Etz ◽  
Thomas D. Schroeder ◽  
Winnie Wong-Ng
Keyword(s):  
Fluorescence Spectra ◽  
Single Phase ◽  
X Ray Diffraction ◽  
Ceramic Powders ◽  
Conventional Solid State Reaction ◽  
X Ray ◽  
Raman Microprobe ◽  
Methods Of Synthesis ◽  
Compositional Homogeneity ◽  
Processing Techniques

We are investigating by Raman microprobe measurements the superconducting and related phases in the LnBa2Cu3O7-x (for x=0 to 1) system where yttrium has been replaced by several of the lanthanide (Ln = Nd,Sm,Eu,Ho,Er) elements. The aim is to relate the observed optical spectra (Raman and fluorescence) to the compositional and structural properties of these solids as part of comprehensive materials characterization. The results are correlated with the methods of synthesis, the processing techniques of these materials, and their superconducting properties. Of relevance is the substitutional chemistry of these isostructural systems, the differences in the spectra, and their microanalytical usefulness for the detection of impurity phases, and the assessment of compositional homogeneity. The Raman spectra of most of these compounds are well understood from accounts in the literature.The materials examined here are mostly ceramic powders prepared by conventional solid state reaction techniques. The bulk samples are of nominally single-phase composition as determined by x-ray diffraction.

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