Abstract
Driven by high penetration renewable energy roadmaps, making full use of wind power is still an important work for wind industry and the goal of China. Considering the multiple stakeholders in power supply side and the unbalanced development of them, coordinated dispatch can maximize the wind power utilization. Deep peak regulation (DPR) market in China now has facilitated the coordination. However, wind farms in the market are involved passively for the cost sharing which is not conducive to wind farms to make full play of it advantages. Besides, the electricity of wind farm benefiting from deep peak regulation market cannot be clearly calculated. To solve this problem, a bilateral coordinated dispatch of wind power and other power generation companies (GENCOs) can be introduced in deep peak regulation. In this paper, the bilateral coordination of wind power and other GENCOs in DPR is studied. The potential economic feasible regions in bilateral coordination are analyzed and the compensation pricing ranges are given according to the individual rationality (IR) constraints. The contributions of different participants are clearly calculated using Shapley value, according to which the fair profit allocation is ensured. An affine decision rule is utilized for the simplification and fast computation. A real system in northeast China is utilized for case study to verify the potential economic feasible region. The results can provide reference for the implement and profit allocation of bilateral coordination.
Highlights
High penetration renewable energy roadmaps for the year 2050 have been put forward by different countries and regions [1]–[3]
Wind power in the market is involved in passive cost sharing and the electricity of wind farm benefiting from deep peak regulation market cannot be clearly calculated [22]
The major contributions of this paper are in three aspects: 1) A bilateral coordinated dispatch scheme for multiple generation companies (GENCOs) is proposed to pursue the maximization of the overall profit, which can provide more initiatives and choice for wind farms in deep peak regulation operation
Summary
High penetration renewable energy roadmaps for the year 2050 have been put forward by different countries and regions [1]–[3]. The major contributions of this paper are in three aspects: 1) A bilateral coordinated dispatch scheme for multiple GENCOs is proposed to pursue the maximization of the overall profit, which can provide more initiatives and choice for wind farms in deep peak regulation operation. Where the lower boundary of the price means the cost recovery price of GENCO providing deep regulation service in coordinated dispatch, while the upper boundary is the maximum potential utility value of curtailed wind power for wind farms. Where EUC-D,t is the utility of the alliance under a coordinated dispatch in time t; NG,C-D is the number of thermal power units participating in the coordinated dispatch; PW,DPR,t is the available peak regulation depth of GENCOs coordinated with wind power in time t, which can be calculated by (32); PW,DPR,N,t is the maximum normalized wind power can be consumed under coordinated dispatch limited by security constraints, which is shown in (33).
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