The Research And Design Of High Accuracy And Multi-function Electronic Watt-hour Meter Based On IC TDK6513

In the paper, internal and oversea situation of developing electronic energy meterhas been analyzed, the high accuracy and Multi-function electronic energy meter has been researched and designed in allusion to requirement of the energy meters in the electricity department.At first, this paper summarizes the present developing state of multi-function electronic watt-hour meter and the basic theory of digital energy measurement;and then, introduces the overall scheme of the design of the meter;and then put forward a new measure method which fit electric power system:Measure according to power factor,which was added to this multi_function power meter;and after the disadvantage of other method was analysed ,the scheme of return of low_votage loss was put forwarded,which was not affected by the none_ballance character of power line. This paper put forward the circuit design of each unit with the function divided, including power unit,communication unit, and IC card interface unit etc.Some measures of system's measurement error and error compensation are taken into comment. The soft design of the system is the priority of this paper.The interface programming adopts the advance visual language and for power meter this paper utilize modularization method to realize the common function of Multi-function meter,such as active power,reactive power, maximum demand,communication,keyboard and display,anomaly detection,electricity reading meter and so on.Most importantly,the measure method that measure apart according to power-factor is introduced as a innovation. Finally, the measures of returning Low-Votage power energy loss are introduced detailedly.The accuracy of this 3-phase multi-function electronic watt-hour meter can be to 0.2S and reactive power class 1.0. This system is designed in view of its commonality. so, it can satisfy different user without modify program code. It has been proved in practice that this Late-model multi-function electronic watt-hour meter has high accuracy, excellency of run stability, high reliability, good commonality and strong ability of anti-jamming, etc. It's fit in with the market demand of the watt-hour meter.