A joint emergency dispatching method for cascade reservoirs

Abstract

The invention discloses a joint emergency dispatching method for a cascade reservoir group. The joint emergency dispatching method comprises the steps that operation conditions of two dispatching reservoirs are firstly monitored, then corresponding out-reservoir flow constraint conditions are determined according to different combinations of dangerous conditions, outburst or normal operation of the two dispatching reservoirs, and then discharge capacity states, inflow states and in-reservoir flood flow in each period of time of the two dispatching reservoirs are determined; and finally, a trial algorithm is adopted to forward deduce and solve a water balance formula for the outflow state variables in each period of time to determine the out-reservoir flood flow and the corresponding waterstorage capacity of the two dispatching reservoirs in each period of time. The joint emergency dispatching method combines hydraulic connection between units of the cascade reservoir group in a drainage basin, gives full play to the regulating function of the reservoirs and the associated reservoirs upstream and downstream, and solves the emergency dispatching problem of extraordinary water volumein specific situations from the perspective of prevention; and risk dispatching plans of different dispatching modes are formed, and decision support is provided for relevant reservoir safety administrative departments and reservoir management units.

Description

technical field [0001] The invention relates to a joint emergency dispatching method for cascade reservoir groups based on multi-source risk impacts when reservoir dams face emergencies, and belongs to the fields of reservoir dam safety management and cascade reservoir system joint dispatching. Background technique [0002] At present, in the planning, design and construction stages of the cascade reservoir group, it is impossible to completely avoid all the risks and disasters of the cascade reservoir group during the entire service period. Therefore, it is still necessary to take effective avoidance measures to avoid Its risks and disasters, and the emergency response mechanism is its key. [0003] The core of emergency response is to block the disaster chain, which is directly reflected in the use of emergency joint dispatch to reduce losses downstream of the dam and ensure the comprehensive safety of the surrounding areas of the project and downstream flood control point...

AI Technical Summary

Problems solved by technology

Although scholars in related fields have discussed the issue of emergency dispatch from different angles and levels, and have achieved certain results, the existing research often focuses on emergency dispatch under severe flood scenarios, and fails to fully consider the relationship between reservoir units in cascade environments. Influenced by natural risk sources such as earthquakes, rainstorms and floods, man-made risk sources such as planning, design, construction, operation, and engineering risk sources such as upstream reservoir damage and collapse

In addition, the current research on the joint dispatching of cascade reservoirs mainly focuses on the joint dispatching of flood control, water storage and discharge dispatching, and power generation dispatching. Although the research on how to reduce the risk of reservoir dams and ensure the safety of people's lives to the greatest extent through joint emergency dispatching measures of reservoirs has attracted attention, it mostly depends on experience, and the progress and accuracy are difficult to meet the current requirements

Images