Design Of Water Balance Model In South-to-north Water Route Project

The role of South-to-North Water Diversion Middle Route Project is to transport water from reservoir Danjiangkou northward to Hebei, Henan, Beijing and Tianjin along. Water delivery process is a reasonable allocation of limited water resources in Danjiangkou reservoir, delivering water to various water diversion gates according to the plan. Water supply model is designed to meet the supply and demand balance, in line with engineering design conveyance capacity, including the calculation of adjustable water in water source area, the calculation of water demand of the users in water receiving area, water supply plan generation and water supply plan adjustment.According to the adjustable water and water demands of users, combined with real-time project operating conditions, we can use water supply model to make annual water allocation plan including monthly water supply plan. After rectification and dynamic adjustment of water supply parameters, the automated dispatch system can generate dispatch orders by calculation to implement gate control or other operations.For the water balance model can accurately calculate the canal and the canal water, precision outbound and danjiangkou water along the water user precision demand calculation. Dynamic balance can realize water of water supply and water demand, meet the requirements of basic supply and demand conditions. Channel safety dispatching can reduce the risk and control within the scope of the border security regulating volume. Is advantageous to the efficient utilization of water resources saving, avoid the disorder of water resources scheduling, cause waste. Is advantageous to the precise scheduling, greatly reduce the manpower, material and financial resources. The model for long-distance, big flow of open channel scheduling provides the most basic security, economic foundation.