文章摘要
基于ε-松弛的主动配电网有功-无功协调调度求解方法
Active - reactive coordination operation and efficient solution method in active distribution network
投稿时间:2019-07-08  修订日期:2020-02-04
DOI:
中文关键词: 主动配电网  有功-无功协调调度  二阶锥规划  线性化建模
英文关键词: active distribution network  active-reactive coordination dispatch  second-order cone relaxation  linear modeling  e-relaxation
基金项目:国家电网公司科技项目:客户侧分布式储能柔性协调控制与联合运行关键技术研究。
作者单位E-mail
邓振立 国网河南省电力公司经济技术研究院 dengzhenli2016@163.com 
张涛 国网江苏省电力有限公司淮安供电分公司  
李荣 国网江苏省电力有限公司南京供电分公司  
陈丽娟 东南大学电气工程学院  
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中文摘要:
      面对可控资源的调度特性差异与有功-无功的强耦合性,配电网在如何实现众多资源的协调运行及其模型高效求解方面面临诸多挑战。为解决上述问题,本文计及可调资源的多时段运行特性和无功调整能力,提出了一种主动配电网有功-无功协调运行与高效求解方法。首先,基于二阶锥松弛技术与线性化建模技术,将优化模型转化为混合整数二阶锥规划问题。进一步,基于“e-松弛”法,将二阶锥采用多面体进行松弛,将模型转换为可高效求解的0-1混合整数线性规划问题。最后,基于对IEEE 33节点配电系统仿真算例,验证了所提方法可以兼顾模型求解精度和求解效率,并可以为主动配电网中的DG、EES等可调资源安排合理高效的调度计划,在实现DG充分消纳的情况下,达到节能降损、改善电压水平的目的。
英文摘要:
      Faced with the difference in dispatch characteristics of controllable resources and the strong coupling of active and reactive power, the distribution network is facing many challenges in how to realize the coordinated operation of many resources and the efficient solution of the model. To solve the above problems, this paper proposes an ADN active-reactive coordination operation and efficient solution method considering the multi-period operation characteristics and reactive power adjustment ability of adjustable resources. Firstly, based on the second-order cone relaxation and linearization modeling technology, the optimization model is transformed into MISOCP. Further, based on the "e-relaxation" method, the second-order cone is relaxed by polyhedron, and the model is transformed into a 0-1 MILP that can be efficiently solved. Finally, based on the IEEE 33-node power distribution system, it is verified that the proposed method can balance the accuracy and efficiency of the model, and can arrange reasonable and efficient scheduling for DG, EES and other adjustable resources. Meanwhile, in the case of full consumption, the purpose of saving energy and reducing voltage levels is achieved.
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