The invention belongs to the field of power
system dispatching control, and relates to a hydroelectric
energy storage system optimal dispatching method considering
energy storage and
water consumption rate, which comprises the following steps: constructing a hydroelectric generating set
water consumption characteristic model and a
battery energy storage life loss cost model; establishing an optimization model by taking minimization of the comprehensive operation cost of the
system as a target and taking
power balance and hydroelectric-
energy storage coupling operation as core constraints; solving the optimization model by adopting a double-layer frame combining day-ahead optimization scheduling and intra-day rolling correction, and generating a combined scheduling instruction of
hydropower and energy storage; issuing the generated joint dispatching instruction to a
hydropower station automatic power generation
control system and a
battery energy storage energy management system for execution, and collecting actual operation data to perform feedback correction on the model; on the premise that the
power grid dispatching requirement is met, the utilization efficiency of
water energy resources is improved, attenuation of the service life of an energy storage battery is delayed, and economical operation of a water-
electricity-energy storage combined system is achieved.