The invention discloses a method and 
system for real-time automatic distribution of gate opening of a 
cascade hydropower station. The 
system includes a collection terminal, 
database server, 
application server, process 
library, policy 
library, information publishing cat, and 
remote control system, a collection element, transmission element, 
simulation element, and constraint element are arranged onthe 
application server and are connected with the 
database server, process 
library and information publishing cat. The invention can adjust the gate in advance, at the same time, the opening degree of each gate of the preset dispatching strategy is given by using the subsection step-size 
mutation algorithm, In addition to real-time monitoring of 
reservoir water level, effectively shorten the timeof making gate opening, A good balance has been struck between 
flood control and flood 
resource utilization, In order to reduce the working intensity of the operators and accurately control the waterlevel of the reservoir, the calculation process is simple and quick, and the follow-up effect of 
cascade flood control storage capacity under different 
flood discharge is taken into account, so as tomeet the needs of the actual operation of the 
power station for the calculation result accuracy, safety, real-time performance and economy.