水风光多能互补运行中多主体损益关系分析北大核心CSCD

在多能互补运行模式下,以水电为主的灵活性电源为配合风光消纳,常需要双向调峰,导致其原有的运行方式发生显著变化,使得不同发电主体间的损益关系十分复杂。如不能有效厘清各主体损益关系并提出补偿机制,将难以发挥不同类型电源参与一体化运行的积极性。本文以雅砻江下游清洁能源基地为研究对象,选取四季典型日,设置3种水风光运行情景,分析不同季节不同情景下各电源主体的损益指标,量化了各主体的损益关系。结果表明:多能互补运行模式下,水风光系统总效益明显提升(情景2、3效益分别增加13.46%和13.44%)、风光效益增量显著(情景2、3效益分别增加123.27%和145.99%),而水电因补偿风光导致其效益损失(情景2、3效益分别减少0.33%和3.21%)。

Analysis of multi-entity profit and loss relationship in hydro-wind-solar power complementary operation

In the multi-energy complementary mode, the operation of hydropower-based flexible power sources will make a significant change to match the outputs of wind and solar power, thereby complicating the profit and loss relationship between different power generation entities. If the relationship between the different main entities is not clarified effectively or no compensation mechanism takes effect, it will be difficult to bring into play the enthusiasm of various power sources in participating in the integrated operation. This paper analyzes the profit and loss indexes of different power sources under three hydro-wind-solar power operation scenarios in the typical days of different seasons, and quantifies their profit and loss relationship, via a case study of a clean energy base in the lower Yalong River. The results show that under the multi-energy complementary operation mode, the total benefit of the hydro-wind-solar power system is increased significantly by 13.5% and 13.4%, along with a huge rise in the wind-solar power benefit of 123.3% and 146.0% in Scenarios 2 and 3, respectively, while the hydropower loses its benefit due to compensating for the other two sources by 0.33% and 3.21% for these two scenarios.