本文研究一类水火电系统的最比开发规划问题，以黄河上游龙－青段梯级水电站群 升发规划研究为背景，建立了这类问题的一个非线性混合整数规划模型；根据西北地 区电力系统的实际资料，求解该问题，可优选出今后二十年内，该电力系统中计划建 设的新电站的顺序，各电站装机容量的大小及与水电站相应的水库的特征参数． In this paper, we study the most relative development and planning problem of a hydro-thermal power system. Based on the study of the ascending and descending planning of the Long-qing-gated cascade hydropower stations in the upper reaches of the Yellow River, a nonlinear mixed integer programming model for such problems is established. According to the Northwest Electric Power System Of the actual data to solve the problem can be preferred within the next two decades, the power system planned for the construction of the new power station order, the size of the power plant installed capacity and hydropower station corresponding reservoir characteristics parameters.