梯级水电短期调度时需保障各电站下游河段的生态要求,而生态调度的深入研究要求生态约束越来越多样化,使得流域梯级短期优化调度问题愈加复杂。该文首先将生态约束按流量约束和控制方式分为Ⅰ类、Ⅱ类和Ⅲ类,满足梯级库群复杂的生态调度要求;接着以剩余负荷峰谷差最小为目标,构建了耦合复杂生态约束的梯级水电短期日前调峰模型;最后利用分段线性化技术处理一元水力非线性约束,将四边形网格栅格化技术与第二类特殊顺序集(special ordered sets of type 2
SOS2)约束建模方法结合处理二元电力非线性约束,采用大M法对较为复杂的Ⅲ类生态约束进行线性化,将原模型转化为标准混合整数线性规划(mixed-integer linear programming
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