Short-term generation scheduling for the peak-energy maximization of large-scale hydropower systems

作者：Wang Jinwen^*; Fan Xihui; Zhang Yongchuan; Zhang Shiqin; Yue Yuhua

来源：Automation of Electric Power Systems, 2003, 27(15): 29-34.

• Object function
• Optimization regulation
• Short term peak energy

For the objective function of maximizing the peak-energy, which is frequently used for short-term hydropower scheduling in China, this paper proposes a computational advantageous alternative form of the initial objective function, of which the rationality is mathematically discussed. A periodicity model is designed to estimate the end-of-study contents of the reservoirs with short-live storage and the delay releases from upper reservoirs. An improved direct search method is used to solve the short-term hydropower-scheduling problem with the delay time between interconnected reservoirs taken into account. A policy to avoid spillage as small as possible is designed, and the constraints on plant-based power ramp, minimum up/down time, up/down frequency, running scope, capacity reserve for hydropower system, etc. are taken into account. With Fujian hydropower systems as an example, the formulated model for the peak-energy maximization is practically tested.

• 出版日期2003