[1]王金凤,张慧慧,祝方圆.基于典型场景集的高比例风电系统运行灵活性评估[J].郑州大学学报(工学版),2021,42(06):95-100.
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基于典型场景集的高比例风电系统运行灵活性评估()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
42
期数:
2021年06期
页码:
95-100
栏目:
出版日期:
2021-11-10

文章信息/Info

Title:
Evaluation of System Operational Flexibility ba<x>sed on Typical Scenario Sets
作者:
王金凤张慧慧祝方圆
文献标志码:
A
摘要:
高比例风电系统中,对系统灵活性的评估是灵活性资源配置和规划的基础。为兼顾计算效率和数据特征,本文对风电和负荷进行分层聚类、消减和融合后得出系统典型场景集;采用不确定性研究方法,基于风电和负荷的波动性,对系统灵活性需求建模;然后,针对典型场景集遍历求解加入灵活性约束的经济调度模型,计算向上/下灵活性不足概率和期望;最后,按各典型场景的概率计算系统的灵活性指标,对系统的灵活性资源进行评价,指导灵活性资源的配置。通过算例验证本文所提方法的有效性和实用性.
Abstract:
In a high-proportion wind power system, the evaluation of system flexibility is the basis of flexible resource allocation and planning. In order to take into account computational efficiency and data characteristics, the typical scenario sets of the system are obtained after hierarchical clustering, subtraction and fusion of wind power and load. Then, ba<x>sed on the fluctuation of wind power and load, the flexibility requirements of the system are modeled by using the uncertainty research method. Then, the economic scheduling model with flexibility constraints was solved by traversing a typical scenario set, and the probability and expectation of the up/down flexibility deficiency were calculated. Finally, the flexibility index of the system is calculated according to the probability of each typical scene, and the flexibility resources of the system are evaluated to guide the allocation of flexibility resources. The validity and practicability of the proposed method are verified by a numerical example
更新日期/Last Update: 2021-12-17