Research on Detection and Real-time Monitoring Technology for Harmonic Issues in Photovoltaic Systems
With the expansion of the grid-connected photovoltaic(PV)system,the harmonic problem has become increasingly prominent,affecting grid stability and power quality.This article analyzes the causes of harmonics and explores the application of technologies such as time-frequency analysis,intelligent algorithms,intelligent sensors and the Internet of Things(IoT),distributed monitoring,and cloud computing platforms in harmonic detection and monitoring.These technologies contribute to harmonic source identification,power quality improvement,fault diagnosis and prevention,and optimization of operation and maintenance.In the future,with the improvement of intelligence and automation levels,as well as the application of multi-source data fusion and cloud computing technologies,the harmonic issue in PV systems will be addressed more effectively.
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