Power quality monitoringdeviceBefore use, the first step is to address why monitoring is necessary, what goals are expected to be achieved, and what key points should be noted during implementation. Because these contents will indeed determine what analysis methods should be adopted, what system architecture should be adopted, and what software and hardware platforms should be used during the implementation process. Therefore, when conducting any power quality analysis and control, it is necessary to first establish clear goals.

These contents should include: describing the overall performance requirements of the monitoring system; Determine the specific power quality issues that the system will address; Standards for evaluating the level of power quality; Prepare contingency plans to diagnose potential interference and software and hardware issues. Specifically, it is necessary to determine the description and analysis method of power quality; Select monitoring points for power quality; Determine the threshold value for monitoring initiation; Determine the time range for measurement and monitoring; Power quality monitoring involves a series of necessary analysis and processing, including disturbance classification and localization.

With the progress of the times and the rapid development of technology, there have been new trends in the composition of modern power grids and loads, resulting in power quality issues that are increasingly receiving high attention from power departments and users. On the one hand, impulsive and nonlinear loads cause serious power quality problems in the power grid, such as waveform distortion, voltage flicker, and voltage sag.

On the other hand, the precision and complexity of electronic devices used by people also require high-quality and reliable power supply. In order to adapt to the needs of market development, the electricity quality indicators for electricity supply are required. To meet the needs of market development, it is necessary to monitor, statistics, and analyze power quality indicators to achieve quality control of power.