Design of Power Quality Analyzer Based on Virtual Instrument

With the development of the economy and industry, the electrical industry is booming. In order to further increase productivity and facilitate life, a large number of non-linear loads are connected to the grid, and the rapid growth of non-linear loads poses a significant threat to the safe and economic operation of the grid. In order to be able to detect power quality problems in the grid in a more flexible and convenient way in time and space and to avoid economic losses, there is a great need to develop a power quality analyzer with fast processing speed, high versatility and basic analysis indexes. According to the above requirements, this paper designs a power quality analyzer from the hardware and software parts. The power quality analyzer can realize the parallel operation processing of multiple data, and has the advantages of high accuracy, complete index, flexible and universal, etc., which has good practical application prospects.