欧阳海灌区干渠优化配水的递阶模型和求解技术

针对引蓄结合的长藤结瓜式灌溉系统特点，建立了干渠优化配水的大系统多目标递阶模型，解决多种水源联合运用的时、空优化分配问题，对子系统的变维ＭＤＤＰ模型和大系统的发散系统ＭＯＤＰ模型求解技术进行了新的探索，模型和求解方法在欧阳海灌区应用，取得满意成果。

A largescale system hierarchical model and its solution for the optimal water distribution of main canal in Ou-Yang-hai irrigated area

In this paper, the largescale system hierarchical model for water distribution of main canal has ben established according to the characteristic of melons--vines mode irrigation system which water resources can be diverted or stored. When main canals and small reservoirs as well as ponds are jointly put into operation the model can be used to solve the problems of optimal distribution of water resources in time and space. The solution techniques for variable dimension MDDP model of subsystem and MODP model of non--series large system also have been studied. The application of the model in solving the problem of optimal operation of On-Yang-hai main canal is successful.