ARM based remote electric energy quality detection system

Abstract

The invention relates to an ARM remote electric energy quality detection system. The system is characterized by comprising a data collection module, a DSP processing module and an ARM engineering module. The data collection module collects power grid data, the collected power grid data is transmitted to the DSP processing module via a double-port RAM, the DSP processing module calculates the data effectively, data processed by the DSP processing module is transmitted to the ARM engineering module via another double-port RAM, and the ARM engineering module further processes the data and uploads the data to a host computer. An embedded ARM system is used, a DSP serves as a data processing module, and the real-time electric energy quality monitoring system based on the Ethernet is developed. Experiments show that the system of the invention can reach standards of different electric energy quality indexes, and satisfy network and real-time requirements for the modern electric quality monitoring system.

Description

technical field [0001] The invention relates to a novel ARM-based remote power quality detection system, which is applied in the technical field of power electronics. Background technique [0002] Foreign countries started earlier in the research on power quality and attached great importance to the development and research of power quality testing equipment, so they have a great technical advantage in power quality testing equipment. Foreign power quality testing equipment not only has a high level of technology, but also has a variety of types, such as: PW3198 series power quality analyzer developed by Hioki of Japan, Fluke430 series power quality analyzer of American Fluke Company, 1760 series three-phase power quality recorder Instrument, TOPAS1000 series power network analyzer and PQFIX power quality remote monitoring device of Swedish LEM company, UP-2210 online power quality analyzer and U900F portable power quality analyzer of Swedish United Power Company, etc. These...

AI Technical Summary

Problems solved by technology

The introduction of these non-linear devices can increase production capacity, but it also has a serious impact on the stability and improvement of power quality.

Among these influences, the connection of various frequency converters, rectifiers, electric arc furnaces and the application of high-voltage direct current transmission systems have increased the harmonic components in the power grid, causing serious harmonic pollution. At the same time, various large-scale impact The connection of loads and asymmetrical loads destroys the balance and symmetry of the power grid, and also causes hidden dangers of large transient interference and voltage flicker in the power grid

Many power quality problems caused by these disturbances have greatly affected the safe operation of the power grid, and also seriously hindered the smooth progress of industrial and agricultural production.

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