Research on the Compensation Benefit of Cascade Hydro Plants in Power Market
In order to accurately calculate the compensation benefit which comes from the joint operation of cascade hydro plants,a new method was proposed based on the electric energy benchmark of hydro plant,which not only takes into account the time-of-use power price of every plant,but also considers the load rate constraint from power grid for the incremental output of each station.In order to reasonably distribute the compensation benefit among the involved plants,a coordinated allocating model based on the basic principle of group decision was also developed,which comprises the following process steps.Firstly,for the benefit-sharing principles selected by all involved parties,the individual preference weight vector of every plant was obtained by solving an objective function whose goal is maximum single plant apportionment ratio.Secondly,the recognised weight vector was determined through the principle of maximizing group consistency,and finally,the actual benefit-sharing proportion of each plant was fixed by solving another objective function whose goal is minimizing the distance between the actual benefit-sharing proportion vector and the vectors from all the benefit-sharing principles.The study case showed that the proposed computing method can get closer to the real value of compensation benefit,and the benefit-sharing results from the presented model are not only reasonable but also can be accepted more easily by every involved plant.
joint operationelectric energy benchmarkcompensation benefits allocationgroup consistencycascade hydro plants
国家科技期刊平台
NSTL
万方数据
维普
