Research And Design Of Smart Meter Based On STM32

With the continued rapid development of China ’s economy, industrial and residentialelectricity consumption has emerged as a trend of rapid growth, the country has investedhuge amounts of money each year for new power plants and power grids, but still unable tomeet the growing demand for electricity, resulting in every year with a wide range of seasonalshortage phenomenon, and intensified. Currently, affected by low-carbon economy,sustainable development and green energy, etc., people are increasingly pursuing win-winsituation of social and economic development and ecological environment protection, thenbuilding more secure, reliable, environmentally friendly and economical power system isimperative, There have been the smart grid. Smart meter is the major equipment of the smartgrid, It Responsible for collecting the original energy data, real-time monitoring, automaticcontrol, information exchange and other tasks.At present, meters for household use are common electronic energy meter, only to collectraw power data, automatic meter reading and other basic functions, applications are relativelysimple, often used in residential areas. Unable to meet the increasingly complex needs ofelectricity, such as residential electricity consumption, electricity dormitory, shopping malls,stores and office buildings functional requirements for the meter are not the same. In thetechnical solutions, the traditional microcontroller running more slowly, on-chip resourcesare relatively small, does not apply to situations of multifunctional, high-precision,high-speed real-time processing information. And high-speed DSP needs more peripheral andcomplex system, costs are relatively high, does not apply to the development of smart meter.STM32family of ARM processors have a higher cost performance, multiple peripheral, canachieve data acquisition and processing, human-computer interaction, communicationinterface and other functions, together with energy metering chip ATT7022E makes thewhole system is small, low power consumption, high stability, has a high practical value.Through study abroad smart meters, analysis of current domestic demand for smartmeters, we believe that the development of a multi-purpose smart meters for nation-buildingsmart grid is essential. From the practical point of view, design and implementation of asingle-phase/three-phase smart meters, the technical indicators, electrical performance,functional requirements, environmental adaptation, interference, and reliability are all inaccordance with the national grid the company’s smart meter technology standards to design.