The invention belongs to the technical field of
electric heating joint optimization scheduling, and discloses a cold region novel power
system flexibility improvement method and
system based on
heat supply network
inertia, and the method comprises the steps: fusing the
inertia characteristics of a
heat supply network, building an
electric heating cooperation model, and achieving the whole-cycle cost minimization solving and flexibility quantitative evaluation through the combination of multiple constraints, and a heat storage adjusting space is provided for the
system according to the heat
delay and heat loss characteristics of
heat supply network
inertia, the CHP unit is allowed to preferentially respond to power dispatching on the premise that heat supply stability is guaranteed, the straight condensing thermal
power unit is allowed to adjust power supply and demand through climbing, a
heat pump supplements a heat supply gap, and the flexible adjusting capacity of the system is greatly improved. The whole-cycle
cost optimization target reduces
unit operation and wind and light abandoning losses, multi-dimensional flexibility index quantification verifies the remarkable improvement effect of heat
supply network inertia on the flexibility of a
power grid, the stable operation capacity of a power system under high-proportion
new energy access is enhanced, and the winter heat supply reliability of the cold region is guaranteed.