The Research And Application Of Watt-hour Meter Based On Msp430

The energy production is defferent from the other products, its characteristics are power generation plants, electricity supply sector, the user of electricity, these three sectors together into a system without interruption to work, each dispensable. So how to sell power between them, how economic calculations, the need for a measuring apparatus to measure among the three sectors, and calculate the amount of electricity. The meter closely related with the production and life is the main tool of current metering and economic billing electricity, its performance and accuracy will have a direct bearing on the state and the user's economic interests. Electronic technology, computer technology and the rapid development of automatic control technology is the power meter rapid technological progress, the growing maturity of the main technical support. Therefore, the energy meter design research and practice is a long-term without interruption of the research topic, particularly in efforts to build a conservation-oriented society of today, new developments in meter technology is bound to saving and efficient use of energy resources to make a significant contribution.In the future,the construction of power system is to build the intelligent power grid,so at present, the energy meter have the direction of development towards electronic,SOC, multifunction and intelligent. This paper use MSP430 as electronic energy meter'MCU, MSP430 have low power, rich-chip peripheral modules, it is widely used in the current design of intelligent instrumentation, part of them is the special-purpose chip for electronic energy meter, water meter, etc. Otherwise, the design of electrical energy meter not only ensuring the accuracy, functional integrity, but also achieving anti-theft measure, can be called smart meter, can also adapt to market requirements. According to the principle of tampering actions, this paper summarizes the common means of tampering and tampering prevention means, and researches anti-theft function special for electronic energy meter, pave the way for the design of energy Meter. Based on these, this paper introduced the design of single-phase SOC electronic energy meter, three-phase multi-function electronic energy meter, three-phase multi-rate electronic energy meter,etc, anti-theft technology is leading in the same industry. And especially introduced a new design of anti-tamper single-phase electronic watt-hour meter from the hardware and software design, it is the first SOC meter in the same industry.