[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.[doi:10.13705/j.issn.1671-6833.2021.06.001]
　WANG Jinfeng,ZHANG Huihui,ZHU Fangyuan.Evaluation of System Operational Flexibility of High Proportion Wind Power System Based on the Typical Scene Set[J].Journal of Zhengzhou University (Engineering Science),2021,42(06):95-100.[doi:10.13705/j.issn.1671-6833.2021.06.001]
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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 of High Proportion Wind Power System Based on the Typical Scene Set
作者:
王金凤; 张慧慧; 祝方圆
郑州大学电气工程学院;
Author(s):
WANG Jinfeng;  ZHANG Huihui;  ZHU Fangyuan
School of Electrical Engineering, Zhengzhou University
关键词:
Keywords:
high proportion of wind power system;  typical scene set;  flexibility index;  economic dispatching;  flexible resources
DOI:
10.13705/j.issn.1671-6833.2021.06.001
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 the temporal and periodic characteristics of data, the typical scene set of the system was obtained after clustering reduction and fusion of wind power and load. Then, the flexibility demand, flexibility supply and flexibility index of the system were modeled. Then, the economic scheduling model with flexibility constraints is solved by traversing the typical scenarios. According to the scheduling results, the probability and expectation of insufficient flexibility of each typical scenario are calculated. Finally, the flexibility index of the system was calculated according to the probability of typical scenarios, and the flexibility of the system was evaluated to guide the allocation of flexibility resources. Through the example analysis, it was found that in the high-proportion wind power system, the downward flexibility resource was only the thermal power unit in operation, and the downward flexibility index did not meet the threshold requirement. A certain downward flexibility resource should be configured in the system, otherwise, a large number of wind abandon would occur.

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更新日期/Last Update: 2021-12-17