The invention relates to the technical field of
electric power system operation and optimization, in particular to a wind-thermal bundling
system adjustable margin prediction method adapting to uncertain working conditions, which comprises the following steps of: 1, establishing a
power model; 2, parameterized expression is carried out; step 3, establishing a
robust optimization problem; 4, determining candidate upper and lower bounds; step 5, solving a sub-problem; 6, determining an interface power boundary; 7, outputting a prediction result; according to the method, a multi-period
power model of a delivery
interface point is established for a
wind power and thermal power bundled delivery scene,
wind power volatility, thermal power climbing / minimum output and other adjustment constraints are uniformly introduced into an interface adjustable margin for description, and a unified aggregation model of
wind power-thermal power-
energy storage and delivery point interface power is established, so that the regulation constraints of the delivery
interface point are optimized. The upper and lower limits of thermal
power output, the climbing constraint and other mechanism conditions are explicitly incorporated, so that the predicted interface power adjustable interval has decomposable and
executable scheduling significance, and meanwhile, the interface power adjustable interval is lighter and supports the reduction of
control complexity.