The invention discloses a distribution network economic optimal dispatching method based on an improved dynamic
kriging model, which comprises the following contents: modeling the state of a pumped storage unit; modeling wind
turbine output and user load; modeling
photovoltaic generator set; putting forward relevant constraint conditions of joint output constraint of a scenery-water combined
system and modeling the scenery-water combined
system; modeling the
economic optimization operation of the distribution network by using the constraint conditions described in step 4; randomly selecting sample points by Monte Carlo
simulation and obtaining the corresponding
system variables to construct an
initial sample database; constructing a gradient-enhanced dynamic
Kriging model and obtaining anew sample
library by adding gradient information; based on the new sample
library, using the BCC optimization
algorithm to solve the distribution network
economic optimization model. The invention reduces the influence of the
power fluctuation brought by the wind-solar
new energy and smoothes the
wind power and the
photovoltaic power generation, improves the power generation stability of the wind-solar
new energy, increases the consumption amount of the wind-solar
new energy and reduces the investment and operation cost of the distribution network system.