含风电场电力系统的鲁棒优化调度

发布时间：2018-01-31 21:01

本文关键词： 预测区间鲁棒调度模型经济调度校正模型鲁棒性经济性　出处：《电网技术》2017年05期 　论文类型：期刊论文

【摘要】：随着风电场大规模的接入电力系统,电网调度运行变得愈加困难。传统的调度方法无法考虑风电出力的不确定性,将威胁系统运行的安全性,因此研究计及风电出力波动性的电力系统安全调度具有重要意义。采用一种基于风电出力预测区间的调度模式来考虑风电出力的不确定性,在此基础上建立鲁棒优化调度模型,并考虑机组的自动发电控制(automatic generation control,AGC)响应来应对风电出力波动,维持系统功率平衡。然后在鲁棒调度模型的基础上建立新的经济校正成本模型来对比传统调度和鲁棒调度的经济性。该模型在目标函数中加入模拟场景下的弃风和失负荷的惩罚费用,利用风电模拟场景计算平均总运行成本。最后采用96个时段的10机算例和实际某省系统中24个时段的134台机算例对传统调度和鲁棒调度进行了对比分析,验证了所提方法的鲁棒性和经济性。
[Abstract]:With the large-scale access of wind farms to the power system, the power grid dispatching becomes more and more difficult. The traditional scheduling methods can not take into account the uncertainty of wind power generation, which will threaten the security of the system operation. Therefore, it is of great significance to study the safe dispatching of power system taking into account the fluctuation of wind power output. A scheduling model based on forecasting interval of wind power output is adopted to consider the uncertainty of wind power output. On this basis, a robust optimal scheduling model is established, and automatic generation control is considered. AGC) response to wind power fluctuations. Maintain the power balance of the system. Then, based on the robust scheduling model, a new economic correction cost model is established to compare the economy of traditional scheduling and robust scheduling. The model adds the abandoned wind in the simulation scenario to the objective function. And overloaded penalties. The average total running cost is calculated by using wind power simulation scene. Finally, the scores of traditional and robust scheduling are compared by using 10 computer examples of 96 periods and 134 computer examples of 24 periods in a province system. Analysis. The robustness and economy of the proposed method are verified.
【作者单位】：西安交通大学电气工程学院;国家电网公司西北分部;
【基金】：国家电网公司管理咨询项目(812501150079)~~
【分类号】：TM614;TM73
【正文快照】： 动,维持系统功率平衡。然后在鲁棒调度模型的基础上建立新的经济校正成本模型来对比传统调度和鲁棒调度的经济性。该模型在目标函数中加入模拟场景下的弃风和失负荷的惩罚费用,利用风电模拟场景计算平均总运行成本。最后采用96个时段的10机算例和实际某省系统中24个时段的134

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