考虑稳定性和空蚀磨损性能的水电站优化调度系统

Optimized operation system of hydropower station under consideration of operation stability and cavitation erosion resistance

简要介绍了水电站优化调度运行的重要性和可行性,以及动态规划法在水电站优化运行中的应用,并通过和其他方法的比较,从功能、精度和优化时间等方面介绍了其优越性。此外,特别强调了优化运行必须考虑稳定性及抗空蚀磨损性能,并进行多目标函数优化。尔后,探讨了稳定性、减轻泥沙及空蚀磨损在优化运行中的作用和体现方式,以及采用毛水头或净水头对水电站优化调度的区别与影响。最后强调了采用净水头进行优化的重要意义。

The importance and feasibility of the optimized operation of hydropower station is briefly described herein with the introduction on the application of dynamic planning method to the optimized operation of it. Moreover, through the comparison with the other methods, the advantage of the dynamic planning method is presented from the aspects such as the function, precision, optimized time, etc. Furthermore, it especially emphasized that the operation stability and the cavitation erosion resistance must be considered for the optimized operation, and then the multi-objective function optimization must be made. Thereafter, the functions and the representations of the operation stability, alleviation of both the silt abrasion and the cavitation erosion during the optimized operation are also discussed with the analyses made on the difference and impact of application of gross head or net head for the optimization. Finally, the importance of the optimization made with the net head is emphasized as well.