风电爬坡事件多级区间预警方法
发布时间：2019-06-27 20:17
【摘要】：大规模风电爬坡事件对电力系统功率平衡问题影响显著,严重时可能导致停电事故。基于区间分析理论,提出了一种风电爬坡事件多级预警方法,对可能造成的危害程度进行预先警告。考虑风电爬坡预测研究现状,采用区间数形式对其不确定性进行描述;针对风电爬坡事件强波动性对电力系统功率控制的影响,以维持静态频率偏差在允许范围内为前提,分析采用不同功率控制措施满足功率平衡所对应的风电爬坡幅度允许区间;确定各等级预警区间的预警界限,并利用区间排序方法计算各预警区间的概率,实现多级预警。算例仿真分析及比较结果表明,所述方法能够给出各级预警区间的界限值及概率分布,物理意义明确,且简便快速,利于实时滚动运行,体现了有效性和实用性。
[Abstract]:Large-scale wind power climbing events have a significant impact on the power balance of power system, which may lead to power outages in serious cases. Based on the theory of interval analysis, a multi-level early warning method for wind power climbing events is proposed to warn the possible harm degree in advance. Considering the research status of wind power climbing prediction, the uncertainty is described in the form of interval number, and in view of the influence of strong fluctuation of wind power climbing events on power control of power system, the allowable range of wind power climbing amplitude corresponding to different power control measures is analyzed on the premise of maintaining static frequency deviation within the allowable range. The early warning limit of each grade early warning interval is determined, and the probability of each early warning interval is calculated by using the interval ranking method, and the multi-level early warning is realized. The simulation results and comparison results show that the method can give the boundary value and probability distribution of the early warning interval at all levels, the physical meaning is clear, and it is simple and fast, which is beneficial to the real-time rolling operation, and reflects the effectiveness and practicability.
【作者单位】： 电网智能化调度与控制教育部重点实验室(山东大学);
【基金】：国家重点基础研究发展计划(973计划)资助项目(2012CB215101) 国家自然科学基金资助项目(51177092)~~
【分类号】：TM614
[Abstract]:Large-scale wind power climbing events have a significant impact on the power balance of power system, which may lead to power outages in serious cases. Based on the theory of interval analysis, a multi-level early warning method for wind power climbing events is proposed to warn the possible harm degree in advance. Considering the research status of wind power climbing prediction, the uncertainty is described in the form of interval number, and in view of the influence of strong fluctuation of wind power climbing events on power control of power system, the allowable range of wind power climbing amplitude corresponding to different power control measures is analyzed on the premise of maintaining static frequency deviation within the allowable range. The early warning limit of each grade early warning interval is determined, and the probability of each early warning interval is calculated by using the interval ranking method, and the multi-level early warning is realized. The simulation results and comparison results show that the method can give the boundary value and probability distribution of the early warning interval at all levels, the physical meaning is clear, and it is simple and fast, which is beneficial to the real-time rolling operation, and reflects the effectiveness and practicability.
【作者单位】： 电网智能化调度与控制教育部重点实验室(山东大学);
【基金】：国家重点基础研究发展计划(973计划)资助项目(2012CB215101) 国家自然科学基金资助项目(51177092)~~
【分类号】：TM614
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本文编号：2507117
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