科学发展观的基本要求是全面协调可持续。为达到这一基本要求,国家出台了一系列相关政策来鼓励、推动电力行业走上节能环保的可持续发展道路。国家大力推行节能发电调度政策,因为节能发电调度办法对于减少能源消耗和污染物排放,推动国民经济又好又快发展,具有重要意义。节能发电调度强调优先调用可再生能源。水电是优质、清洁的可再生能源。随着水力资源开发和利用程度的不断提高,水电站越来越多,其固有的运行灵活性和梯级水电站间的补偿作用,使其在电力系统的安全稳定和经济运行中发挥着重要作用。实施流域梯级电站联合优化调度可以提高供电质量,从而提高电网安全性;流域梯级电站联合优化调度还可以提高水资源利用率,减少弃水,从而减少火电发电量,达到节能减排的效果。因此,《节 The basic requirement of the scientific concept of development is overall coordination and sustainability. In order to meet this basic requirement, the state has promulgated a series of relevant policies to encourage and promote the power industry to embark on a path of sustainable energy saving and environmental protection. Countries vigorously promote energy-saving power generation dispatching policies, because energy-saving power generation dispatching measures for reducing energy consumption and pollutant emissions, and promote sound and rapid development of national economy, is of great significance. Energy-saving generation dispatching emphasizes the priority to call renewable energy. Hydropower is a high quality, clean renewable energy source. With the continuous development and utilization of hydraulic resources, more and more hydropower stations have their inherent operational flexibility and compensation between cascades, making them play an important role in the safety, stability and economic operation of power systems. The implementation of combined optimal scheduling of river basin cascade hydropower stations can improve power supply quality and improve power grid security. Combined optimal dispatching of cascaded hydropower stations in the basin can also increase water utilization efficiency and reduce waste water, thereby reducing the thermal power generation and achieving the effect of energy conservation and emission reduction. Therefore, "section