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Design and implementation of a synchronized three-phase electricity acquisition module

This paper focuses on using a TI's DSP to design an AC electricity acquisition module, which can accomplish the function of distributed synchronous AC electrical parameters sampling. The hardware diagram of the design used a DSP and other auxiliary devices to set up an AC electricity acquisition module with the ability of high frequency distributed simultaneous electrical parameters sampling. Specifically, a GPS was mounted on the module to synchronize sampling between different modules and a SD card was employed to store the collected data. Regarding the software design, a PC control/monitor program was developed. The electricity acquisition terminal is capable of 200KHz simultaneous sampling when it works without SD card while it is verified that the highest sample frequency is 10KHz when it works with a SD card.