Study on Benefit Evaluation System for Optimal Power Generation Dispatching of the Cascade Hydropower Stations

Abstract

Standardized evaluation of the hydropower station is an important content of the operation management for hydropower stations. This paper puts forward a set of relatively complete evaluation index system in terms of power generation, including power generation completion rate, improvement rate for power generation completion, and so on. Among them, the improvement rate for power generation completion shows the rise and fall degree of cascade power generation level in the river basin in the current year through longitudinal comparison of the cascade reservoirs’ power generation completion rate in the current year and many years. The whole set of system can carry on quantitative calculation and qualitative description for each index, and carry out comprehensive evaluation of multi-objective optimal operation benefit of the cascade reservoirs. The cascade hydropower stations’ theoretical generating capacity, power generation completion rate and improvement rate for power generation completion are calculated by examples. The results show that the optimal power generation dispatching level of the cascade hydropower stations is excellent. In conclusion, the benefit evaluation system of the cascade hydropower station is scientific and reasonable, which can provide reference for relevant research at home and abroad, and it has great theoretical significance and engineering practice value.