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1.电网智能化调度与控制教育部重点实验室(山东大学),山东省济南市 250061
2.国网山东省电力公司青岛供电公司,山东省青岛市 266002
孙守晶(1995—),女,硕士研究生,主要研究方向:电力系统继电保护。E-mail:sjingjing@sdu.edu.cn
丛伟(1978—),男,通信作者,博士,副教授,博士生导师,主要研究方向:电力系统继电保护。E-mail:weicong@sdu.edu.cn
邱吉福(1982—),男,硕士,高级工程师,主要研究方向:电力系统及其自动化。E-mail:jfq1277@163.com
收稿:2021-06-17,
修回:2021-10-21,
网络出版:2021-12-16,
纸质出版:2022-04-25
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孙守晶,丛伟,邱吉福等.含智能软开关的智能配电网分布式供电恢复方法[J].电力系统自动化,2022,46(8):79-85.
SUN Shoujing,CONG Wei,QIU Jifu,et al.Distributed Power Restoration Method for Smart Distribution Network with Soft Open Point[J].Automation of Electric Power Systems,2022,46(8):79-85.
孙守晶,丛伟,邱吉福等.含智能软开关的智能配电网分布式供电恢复方法[J].电力系统自动化,2022,46(8):79-85. DOI: 10.7500/AEPS20210617003.
SUN Shoujing,CONG Wei,QIU Jifu,et al.Distributed Power Restoration Method for Smart Distribution Network with Soft Open Point[J].Automation of Electric Power Systems,2022,46(8):79-85. DOI: 10.7500/AEPS20210617003.
为提高供电恢复方法性能,更好地应对智能配电网规模不断扩大、结构日趋复杂、运行方式更加灵活多样的形势,提出了一种含智能软开关的智能配电网分布式供电恢复方法。首先,以电网分布式的拓扑信息和电气量信息为基础,采用网络逐步戴维南等值计算方法,对供电恢复过程中各节点的电气量约束条件进行就地逐步计算,能够更好地适应智能软开关在供电恢复过程中输出不断调整的工作特性。然后,分析了智能软开关的控制原理和工作特性,尤其是在分布式供电恢复过程中的控制策略和输出调整特性,提出了基于配电网逐步戴维南等值的供电恢复电气量参数分布式计算方法,充分发挥智能软开关对供电恢复的支撑作用,进一步提升供电恢复水平。最后,通过IEEE 33节点和IEEE 69节点系统验证所提方法的有效性。
In order to improve the performance of the power restoration method and better deal with the situation of the continuously expanding scale
increasingly complex structure
and more flexible operation modes of the smart distribution network
this paper proposes a distributed power restoration method for smart distribution network with soft open point (SOP). First
based on the distributed topological information and electrical quantity information of the power grids
this paper adopts a step-by-step Thevenin's equivalence calculation method to calculate the electrical quantity constraints of each bus in the power restoration process
which can better adapt to the working characteristics that SOP could continuously adjust the output in the process of power restoration. Then the control principle and working characteristics of SOP are analyzed
especially the control strategy and output adjustment characteristics in the process of distributed power restoration. And this paper proposes a distributed calculation method for electrical parameters in power restoration based on the step-by-step Thevenin's equivalence of distribution network
giving full play to the support role of SOP in power restoration
and further improving the level of power restoration. Finally
the effectiveness of the proposed method is verified by IEEE 33-bus and IEEE 69-bus systems.
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