Research on the Ability of Low-Voltage Concentrators to Collect High-Frequency Load Curves for All Users

With the advancement of energy structure transformation and power market reform, the large-scale integration of new power equipment such as distributed photovoltaic systems and energy storage systems has imposed higher requirements on the grid’s data acquisition capabilities. This paper investigates the ability of low-voltage concentrators to collect high-frequency load profiles from all users. Based on the DL/T 698.45 communication protocol and High-speed Power Line Carrier (HPLC) communication technology, we enhance the data acquisition success rate by optimizing the concentrator level, the acquisition master station level, and the local communication level. Large-scale empirical tests were conducted in a provincial electric power company, covering 153 concentrators from 16 manufacturers and $\mathbf{2 3, 1 0 0}$ electricity meters. The test results indicate that the optimized solution achieves a $99.51 \%$ success rate in collecting 96-point load profiles from all users, with an average monthly communication traffic of 120.53 MB. The research validates the feasibility of high-frequency data collection in medium-sized transformer areas and provides practical evidence for the large-scale application of high-frequency data collection from all users in power systems.