| 引用本文: | 周金辉,颜剑峰,王子凌,柳伟.基于模糊动态时间弯曲算法的主动配电网电压运行状态评估[J].电力自动化设备,2021,41(1): |
| ZHOU Jinhui,YAN Jianfeng,WANG Ziling,LIU Wei.Voltage operating state assessment of active distribution network based on fuzzy dynamic time warping algorithm[J].Electric Power Automation Equipment,2021,41(1): |
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| 摘要: |
| 主动配电网(ADN)电压运行状态评估能够有效集成运行产生的多源异构数据表征ADN电压运行状态。为了客观反映关键节点的电压控制能力、互联分区的无功互动支撑和配电网全局的无功平衡水平，构建“点-区-网”多颗粒度评估指标体系；提出一种融合模糊识别和动态时间弯曲的模糊动态时间弯曲(FDTW)评估算法，将电压运行状态评估问题转化为模糊序列模式识别问题，并采用最小弯曲距离比较待评估样本与参考样本的相似度。以某ADN为应用实例，验证了所提指标体系和FDTW评估算法的有效性。 |
| 关键词: 主动配电网 点-区-网 多颗粒度 模糊动态时间弯曲算法 电压运行状态评估 |
| DOI：10.16081/j.epae.202012002 |
| 分类号:TM732 |
| 基金项目:国网浙江省电力有限公司科技项目(5211DS18002Q) |
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| Voltage operating state assessment of active distribution network based on fuzzy dynamic time warping algorithm |
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ZHOU Jinhui1, YAN Jianfeng2, WANG Ziling1, LIU Wei2
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1.State Grid Zhejiang Electric Power Research Institute, Hangzhou 310014, China;2.School of Automation, Nanjing University of Science & Technology, Nanjing 210094, China
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| Abstract: |
| The voltage operating state assessment of ADN(Active Distribution Network) can effectively inte-grate multi-source heterogeneous data generated by operation and characterize voltage operating state of ADN. In order to objectively reflect the voltage control ability of critical nodes, reactive power interaction supporting of interconnected partitions and reactive power balance level of the global distribution network, a multi-particle scale evaluation index system of “node-partition-network” is constructed. The FDTW(Fuzzy Dynamic Time Warping) evaluation algorithm based on fuzzy recognition and dynamic time warping is proposed to transform the voltage operating state assessment problem into the fuzzy sequence pattern recognition problem, and the minimum bending distance is used to compare the similarity between the unevaluated and reference samples. The effectiveness of the proposed index system and FDTW evaluation method is verified by an actual example of ADN. |
| Key words: active distribution network node-partition-network multi-particle scale fuzzy dynamic time warping algorithm voltage operating state assessment |
