中国电力 ›› 2023, Vol. 56 ›› Issue (12): 69-79.DOI: 10.11930/j.issn.1004-9649.202307070
• 分布式智能电网的规划、运行和电力交易 • 上一篇 下一篇
王晶1(), 袁懿1(
), 邵尹池2, 张晋奇1, 丁然3, 巩彦江4
收稿日期:
2023-07-19
出版日期:
2023-12-28
发布日期:
2023-12-28
作者简介:
王晶(1989—),女,通信作者,高级工程师,硕士,从事新能源规划、调度与运行控制研究,E-mail: wangjingepri@163.com基金资助:
Jing WANG1(), Yi YUAN1(
), Yinchi SHAO2, Jinqi ZHANG1, Ran DING3, Yanjiang GONG4
Received:
2023-07-19
Online:
2023-12-28
Published:
2023-12-28
Supported by:
摘要:
针对分布式光伏高渗透率接入配电网后引起的节点电压越限问题,提出一种考虑资源储备度的主动配电网多目标集群划分与电压控制方法。首先,考虑分布式光伏发电接入时自身调节能力对集群耦合关系及整体控制能力的影响,建立考虑资源储备度的多维集群划分指标。然后,使用K-means聚类算法对离散粒子群算法(discrete particle swarm optimization,DPSO)进行改进,将集群划分转换为优化求解问题。接着,建立主动配电网集群电压控制模型,以主导节点的无功/有功功率为控制对象,确定分布式光伏的时序动作、功率;最后,以某整县屋顶分布式光伏开发试点内的电网为仿真算例,分析不同方案下电压的控制效果、系统网损和光伏利用率等,验证了本文所提电压控制方法的正确性和有效性。
王晶, 袁懿, 邵尹池, 张晋奇, 丁然, 巩彦江. 考虑资源储备度的主动配电网多目标集群划分与电压控制方法[J]. 中国电力, 2023, 56(12): 69-79.
Jing WANG, Yi YUAN, Yinchi SHAO, Jinqi ZHANG, Ran DING, Yanjiang GONG. Multi-Objective Cluster Classification and Voltage Control Approach for Active Distribution Network Considering Resource Reserve Degree[J]. Electric Power, 2023, 56(12): 69-79.
方法 | 集群划分结果 | PV节点 | 主导 节点 | |||||
本文 方法 | 集群1 | 36~47, 50 | 41, 46 | 41 | ||||
集群2 | 1~3, 24~35, 48, 49 | 28~33, 35 | 28 | |||||
集群3 | 18~23 | 18-20 | 20 | |||||
集群4 | 12, 13 | 13 | 13 | |||||
集群5 | 4~11, 14~17 | 11, 14, 15, 17 | 11 | |||||
传统 K-means聚类 | 集群1 | 1, 24~50 | 28~33, 35, 41, 46 | 31 | ||||
集群2 | 18~23 | 18~20 | 20 | |||||
集群3 | 14~17 | 14, 15, 17 | 15 | |||||
集群4 | 4~13 | 11, 13 | 13 | |||||
集群5 | 2, 3 |
表 1 本文方法与传统K-means聚类集群划分方法对比
Table 1 Comparison of cluster classification approaches between proposed method and traditional K-means clustering
方法 | 集群划分结果 | PV节点 | 主导 节点 | |||||
本文 方法 | 集群1 | 36~47, 50 | 41, 46 | 41 | ||||
集群2 | 1~3, 24~35, 48, 49 | 28~33, 35 | 28 | |||||
集群3 | 18~23 | 18-20 | 20 | |||||
集群4 | 12, 13 | 13 | 13 | |||||
集群5 | 4~11, 14~17 | 11, 14, 15, 17 | 11 | |||||
传统 K-means聚类 | 集群1 | 1, 24~50 | 28~33, 35, 41, 46 | 31 | ||||
集群2 | 18~23 | 18~20 | 20 | |||||
集群3 | 14~17 | 14, 15, 17 | 15 | |||||
集群4 | 4~13 | 11, 13 | 13 | |||||
集群5 | 2, 3 |
方法 | 集群 | 综合储备度 | 集群内强耦合 | 集群间弱耦合 | ||||
本文 方法 | 集群1 | 3 | 7.2946×10–7 | 1.4792×10–6 | ||||
集群2 | 1 | 0.005219 | 0. 01173 | |||||
集群3 | 1.904 | 6.2508×10–7 | 1.2829×10–6 | |||||
集群4 | 4 | 8.3025×10–7 | 1.8587×10–6 | |||||
集群5 | 4.151 | 1.6927×10–6 | 1.2234×10–6 | |||||
最大值 | 4.151 | 0.005219 | 0. 01173 | |||||
传统 K-means聚类 | 集群1 | 6.055 | 0.01142 | 0.0235 | ||||
集群2 | 3 | 9.4892×10–7 | 8.480×10–11 | |||||
集群3 | 1 | 6.627×10–7 | 1.3460×10–6 | |||||
集群4 | 3 | 1.2897×10–6 | 1.0261×10–6 | |||||
集群5 | 0 | ∞ | ∞ | |||||
最大值 | 6.055 | ∞ | ∞ |
表 2 两种方法分区指标值
Table 2 Partitioning index values by two methods
方法 | 集群 | 综合储备度 | 集群内强耦合 | 集群间弱耦合 | ||||
本文 方法 | 集群1 | 3 | 7.2946×10–7 | 1.4792×10–6 | ||||
集群2 | 1 | 0.005219 | 0. 01173 | |||||
集群3 | 1.904 | 6.2508×10–7 | 1.2829×10–6 | |||||
集群4 | 4 | 8.3025×10–7 | 1.8587×10–6 | |||||
集群5 | 4.151 | 1.6927×10–6 | 1.2234×10–6 | |||||
最大值 | 4.151 | 0.005219 | 0. 01173 | |||||
传统 K-means聚类 | 集群1 | 6.055 | 0.01142 | 0.0235 | ||||
集群2 | 3 | 9.4892×10–7 | 8.480×10–11 | |||||
集群3 | 1 | 6.627×10–7 | 1.3460×10–6 | |||||
集群4 | 3 | 1.2897×10–6 | 1.0261×10–6 | |||||
集群5 | 0 | ∞ | ∞ | |||||
最大值 | 6.055 | ∞ | ∞ |
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