Abstract
According to the demand of data acquisition in power system, the intelligent wattmeter is constructed, which is based on DSP and FPGA as the data acquisition and processing system, meanwhile, the administration center of the intelligent wattmeter is based on single-chip computer 8051. With these, high speed, multi-point sampling, a large quantity accumulation and real-time calculation are realized. At the same time it reduces the effect of the measuring accuracy upon higher harmonic and the measuring accuracy could reach to 0.02 grade.
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