基于分区的含DG配电网实时无功优化

针对含DG配电网实时无功优化问题,提出了更适合该问题的目标函数,并将实时无功优化与配电网动态分区、短期无功调度相互配合来实现空间上和时间上的解耦。针对配电网动态分区问题,提出了支路切割枚举法,实现了快速动态分区。考虑系统区内无功储备不足等特殊情况,可能会导致系统电压在优化后仍有越限,为保证系统安全,启动第二次优化。通过对含DG的33节点配电系统算例和某实际线路进行验证,表明了该算法在求解实时无功优化问题时的正确性和有效性。...

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Bibliographic Details
Published in电力系统保护与控制 Vol. 43; no. 23; pp. 117 - 124
Main Author 周静 边海峰 贾晨 刘公博 耿光飞
Format Journal Article
LanguageChinese
Published 国网电力科学研究院,北京,102200%中国农业大学,北京,100083 2015
Subjects
二次优化
动态分区
实时无功优化
枚举法
目标规划
目标规划
second optimization
二次优化
goal programming
dynamic partitioning
动态分区
real-time reactive power optimization
实时无功优化
enumeration method
枚举法
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ISSN1674-3415

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Summary:针对含DG配电网实时无功优化问题,提出了更适合该问题的目标函数,并将实时无功优化与配电网动态分区、短期无功调度相互配合来实现空间上和时间上的解耦。针对配电网动态分区问题,提出了支路切割枚举法,实现了快速动态分区。考虑系统区内无功储备不足等特殊情况,可能会导致系统电压在优化后仍有越限,为保证系统安全,启动第二次优化。通过对含DG的33节点配电系统算例和某实际线路进行验证,表明了该算法在求解实时无功优化问题时的正确性和有效性。
Bibliography:ZHOU Jing, BIAN Haifeng, JIA Chen, LIU Gongbo, GENG Guangfei （1. State Grid Electric Power Research Institute, Beijing 102200, China; 2. China Agricultural University, Beijing 100083, China）
In view of real-time reactive power optimization of distribution network including DG, this paper provides a more appropriate object function and coordinates real-time reactive power optimization with dynamic partitioning of power distribution network and short-term reactive power dispatch in order to achieve decoupling of time and space. As for dynamic partitioning of power distribution network, branch cut enumeration is proposed to achieve rapid dynamic partitioning. In case that system voltage is out of limit after optimization due to insufficient reactive power reserve in the system realm or other problems, the second optimization is initiated to ensure the safety of the system. Through verifying the calculation examples of 33-node distribution system including DG and a practical circuit, the algorithm proposed turns o
ISSN:1674-3415