
1. 国网山东省电力公司电力科学研究院
2. 西安交通大学电气工程学院
纸质出版:2025
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高嵩, 庞向坤, 陈思颖, 等. 考虑时序特性的高比例新能源电力系统运行方式聚类分析方法[J]. 山东电力技术, 2025,52(9):44-57.
高嵩, 庞向坤, 陈思颖, 等. 考虑时序特性的高比例新能源电力系统运行方式聚类分析方法[J]. 山东电力技术, 2025,52(9):44-57. DOI: 10.20097/j.cnki.issn1007-9904.2025.09.005.
新能源的随机性和波动性给电力系统的安全稳定运行带来挑战,分析不同可再生能源渗透水平下电力系统的运行方式对其调度运行非常重要,因此,设计一种提取电力系统典型运行方式的综合方法框架。首先,针对实际运行数据不足的问题,利用时序随机生产模拟快速生成高维数据。其次,结合需求响应模型和极端场景,分析高可再生能源渗透率下的潜在运行风险,验证灵活资源提升电力系统调节能力。然后,为解决时序数据聚类的高维和非线性问题,采用深度时序聚类算法,结合由卷积神经网络(convolutional neural network
CNN)和双向长短期记忆网络(bidirectional long shortterm memory network
Bi-LSTM)组成的时序自动编码器,利用动态时序规整作为相似性度量的时序聚类层,联合优化两个层的损失函数,得到聚类中心。最后,基于某省级电网的实际和模拟数据,分析不同渗透率下的聚类结果,验证所提出算法的有效性,证明需求响应对极端场景的调节效果。
The randomness and volatility of renewable energy pose challenges to the safe and stable operation of power systems.Analyzing the operational modes of power systems under different levels of renewable energy penetration is crucial for their scheduling and operation. Therefore
a comprehensive methodology framework is proposed for extracting typical operational modes of power systems.First
to address the issue of insufficient operational data
a temporal stochastic production simulation is used to quickly generate high-dimensional data. Then
by combining demand response models and extreme scenarios
potential operational risks under high renewable energy penetration are analyzed
and the effectiveness of flexible resources in enhancing system regulation is validated.Subsequently
to solve the high-dimensional and nonlinear issues in temporal data clustering
a deep temporal clustering algorithm is employed.This algorithm integrates a temporal autoencoder
which combines convolutional neural networks(CNN) and bidirectional long short-term memory(Bi-LSTM) networks
with a temporal clustering layer using dynamic time warping as a similarity measure.The clustering centers are derived by jointly optimizing the loss functions of both layers..Finally
based on real and simulated data from a provincial power grid
the clustering results under different penetration levels are analyzed
confirming the effectiveness of the proposed algorithm and demonstrating the role of demand response in regulating extreme scenarios.
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