大系统随机控制理论在水库群优化调度中的应用

SCHEDULING OPTIMIZATION OF MULTIRESERVOIR BASED ON STOCHASTIC CONTROL THEORY OF LARGE SCALE SYSTEM

本文应用大系统随机控制理论,提出了水库群长期优化运行的随栅递阶控制方法,它不仅可同时考虑多库间径流序列的时间、空间随机相关,而且由于采用大系统递阶控制原理和方法,克服了由于多库所带来的'维数灾'问题。该法计算简便,所需内存少,全部计算可在微机上完成。

Based on the stochastic Control theory of Large Scale system, a new method for the long term scheduling optimization of multireservoir hydroelectric system is proposed. Taking the cross-correlated stochasticity of multisite inflows into account, the method combines hierarchical control scheme and streamflow generation in conjunction with regression aralysis so as to reduce the dimensionality of the problem. Using this technique, the monthly operating rules can be determined. With the aid of operation release policy made by the procedure,the operation of multireservoir hydropower stations is controlled by microcomputer easily. A numerical example illustrates the efficiency of the proposed method.