长江科学院院报2025，Vol.42Issue(4)：36-44,9.DOI:10.11988/ckyyb.20231348
基于备用流量的水风光多能互补优化调度
Optimization Scheduling of Hydro-Wind-Solar Complementary Systems Based on Standby Flow
摘要
Abstract
With the access of large-scale wind power stations and solar power stations,wind energy and solar energy affect the safe and stable operation of the power system due to the lack of prediction accuracy.This paper presents an optimal scheduling method for the hydro-wind-solar complementary system based on standby flow.First,the standby flow is set according to the available water of each hydropower station based on the inflow.Then,the opti-mal scheduling model based on standby flow is developed.The objectives of this model are to maximize power gen-eration and minimize the variance of residual load.Standby flow serves to mitigate the impact of inaccurate wind and solar energy predictions.Finally,a case study is conducted on the cascade hydropower station and connected wind and solar power stations along the lower Yalong River.Results show that compared with the scenario without standby flow,the power generation efficiency of the multi-energy complementary system with standby flow in typical wet month(June)and typical dry month(December)increases by 0.08％and 1.97％,respectively;and the variance of residual load decreases by more than 40％.In conclusion,setting standby flow can balance the power supply and demand of the power system while ensuring power generation efficiency,thereby guaranteeing the safe and stable operation of the power system.关键词
风光能源/备用流量/多能互补系统/优化调度/梯级水电站Key words
wind and solar energy/standby flow/multi-energy complementary system/optimal scheduling/cas-cade hydropower station分类
建筑与水利引用本文复制引用
方国华,刘畅,丁紫玉..基于备用流量的水风光多能互补优化调度[J].长江科学院院报,2025,42(4):36-44,9.基金项目
国家重点研发计划项目(2019YFE0105200) （2019YFE0105200）
江苏省卓越博士后计划项目(2022ZB157) （2022ZB157）
中国博士后科学基金项目(2022M720996) （2022M720996）
