Research on Real-time Monitoring Technology of Power Quality in Distributed Smart Grid

The current grid power quality real-time monitoring matrix is generally set to be unidirectional, and the monitoring range is limited, leading to the extension of real-time monitoring response time. Therefore, the design and verification research of distributed smart grid power quality real-time monitoring technology is proposed. According to the current measurement requirements and standards, the power quality control problem description and feature extraction shall be carried out first, and the multi-objective method shall be adopted to break the limitation of the traditional monitoring range and design the multi-objective monitoring matrix. On this basis, a synchronous cross-distributed power grid power quality monitoring model is constructed, and the power quality monitoring processing of the power grid is realized by collaborative positioning and data transmission. The final test results show that the real-time monitoring response time obtained from the measurement of the selected five monitoring areas is well controlled below 0.15 s, which indicates that for the distributed power grid, the control of power quality and the monitoring effect have been significantly improved, the monitoring is highly targeted, and the monitoring error is controllable, with practical application value.