采用二层优化的风电系统旋转备用容量分配研究

Spinning Reserve Allocation for Wind Power System Using Bi-level Programming

随着并网风电容量的加大,电力系统对旋转备用容量的需求也大量增加。基于二层规划理论,构建了含风电电力系统旋转备用容量的优化分配模型。模型分别以发电成本和备用成本最小为上层和下层优化目标.在备用成本中考虑了旋转备用容量的综合报价以及由风电不确定性所需要增加的旋转备用容量,对各台发电机发电和备用所担负的容量进行了优化分配,模型的分层结构较好地体现了发电调度和旋转备用调度的主辅关系。采用粒子群算法和单纯形法对模型进行求解,并通过算例分析说明所提出的模型和算法是有效的,对含风电系统的运行分析有一定的参考价值。

As the wind farms integrated power system, the system increased the demand for spinning reserwe. Based on hi-level programming theory, the paper establishes an optimal allocation model of spinning reserwe for wind power system. The model takes power generation cost and spinning reserve cost as the upper and the lower optinfization target respectively. The spinning reserve costtakes into account the comprehensive bidding of the spinning reserves and the spinning reserve produced by the uncertainty of wind power, which makes a elear allocation for the generator and the spinning reserve rate of each unit. The strueture of the model corresponds to the logical relation between power generation scheduling and spinning reserve scheduling. The model is solved by particle swarm optimization （PSO） and simplex algorithm, and a numerical example illustrates the efficiency of the proposed model and method.