Abstract: In the process of controlling the voltage of active distribution network，there are problems of poor

voltage control effect and low efficiency. A two-stage automatic voltage control method of active distribution

network considering load measurement was proposed. Using the probability density function （PDF） curve

discretization method，considering the uncertainty characteristics of load measurement and photovoltaics，the PDF

curves of load and photovoltaic active power errors were discretized. The original scene was reduced by the

synchronous back-reduction method to reduce the amount of calculation and improve the control efficiency；the

control area of the active distribution network was divided by setting the upper and lower limits of the equivalent

voltage，and the top-down method was used. The capacitors，distributed power sources and on-load voltage

regulating transformers were adjusted to realize the two-stage automatic voltage control of the active distribution

network. The experimental results show that the proposed method has a better effect on the two-stage voltage control of the active distribution network，and can effectively improve the voltage control efficiency.

      Key words: load measurement；active distribution network；two-stage voltage control；synchronous backgeneration reduction method；equivalent voltage index