A Design of Three-Phase Digital Watt-Hour Power Meter on SOPC Platform

A hardware and software integrated design of three phase digital watt-hour power meter based on Nios II is introduced in this paper. First of all, hardware design of this system is introduced in this paper. Nios II is applied in this system as the processor and an ADC is employed to sample electric signals. Then, the software of this design, which includes multi-parameter measurement, multi-rate calculation, and network communication, etc., is presented. At last, after field testing, this design is able to meet all the design requirements and perform well.