The measurement for electrical parameters of three-phase power based on single chip microcontroller

This measurement for electrical parameters is based on single chip microcontroller (C8051F020), that use synchronous signal sampling algorithm. We utilize software to replace traditional and complicated hardware circuits and combine multiple functions in the measurement. We can measure the effective values of voltage and current, power, frequency, etc. Meanwhile, we take advantage of computer technology to display the results with outside devices, such as LCD. This thesis includes operational principles of the measurement, focusing on synchronous signal sampling algorithms. Also, it discusses the practical usage of algorithm in the SCM. On the basis of the above, we indicate the process of hardware design and software research. Finally, we do simulations and experiments, and provide the final results.