Abstract
Focus on the increasingly prominent problems of power quality of dedicated users, study on solving electric energy problems, especially for harmonic pollution, was essential. This paper to study the method of testing and calculating electric energy index, then designed hardware to monitor and analyze power quality measurement data. The hardware was developed base on dual DSP2812, which was very advanced digital signal processing chip, and the hardware utilized high precision instantaneous synchronous sampling chip MAX1324, extended RAM and FLASH, RS232 communication circuit, high capacity SD card storage circuit, etc. The dual DSP power quality smart meter was tested and applied in dedicated users and its reliability, practicability, availability and accuracy was authenticated. This smart meter also has advantages of easy to carry, low cost, high precision, easy to promote, etc. can effectively meet power quality management of dedicated users.
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