乐健, 周谦, 王曹, 李星锐. 基于分布式协同的配电网电压和功率优化控制方法研究[J]. 中国电机工程学报, 2020, 40(4): 1249-1257,1415. DOI: 10.13334/j.0258-8013.pcsee.182229
引用本文: 乐健, 周谦, 王曹, 李星锐. 基于分布式协同的配电网电压和功率优化控制方法研究[J]. 中国电机工程学报, 2020, 40(4): 1249-1257,1415. DOI: 10.13334/j.0258-8013.pcsee.182229
LE Jian, ZHOU Qian, WANG Cao, LI Xing-rui. Research on Voltage and Power Optimal Control Strategy of Distribution Network Based on Distributed Collaborative Principle[J]. Proceedings of the CSEE, 2020, 40(4): 1249-1257,1415. DOI: 10.13334/j.0258-8013.pcsee.182229
Citation: LE Jian, ZHOU Qian, WANG Cao, LI Xing-rui. Research on Voltage and Power Optimal Control Strategy of Distribution Network Based on Distributed Collaborative Principle[J]. Proceedings of the CSEE, 2020, 40(4): 1249-1257,1415. DOI: 10.13334/j.0258-8013.pcsee.182229

基于分布式协同的配电网电压和功率优化控制方法研究

Research on Voltage and Power Optimal Control Strategy of Distribution Network Based on Distributed Collaborative Principle

  • 摘要: 传统集中式控制模式可靠性低、计算和通信压力大、可扩展性差,不能适应分布式电源渗透率不断提高背景下配电网运行和控制的要求。该文基于分布式协同控制思想,采用分布式电源分组模式设计了配电网多目标分布式优化控制策略。考虑配电网线路电阻/电抗比较大的特点,以容量利用比为一致性变量设计了电压控制分组的分布式控制算法;根据配电网与外部电网交换有功和无功功率差额的不同情况,分别设计了以容量利用比和功率因数为一致性变量的功率交换控制分布式控制算法,并给出了三种控制分组控制算法的参数整定方法。通过IEEE14节点系统中的仿真算例验证了所提方法的正确性和有效性。该方法为实现高渗透率分布式电源接入的配电网优化运行提供了参考。

     

    Abstract: Traditional central control system fails to cope with operation and control issues of distribution network integrated with high penetration level of distributed generations, due to its low reliability, high computation and communication burden and poor expansibility. Based on distributed cooperation principle, this paper presented a multiple objects distributed optimization control strategy for distribution network using DG grouping method. In considering the feature of high resistance/reactance ration of distribution network feeder line, the distributed control strategy for node voltage control group was developed by taking capacity utilization ratio of DG as the consensus variable. The distributed control strategy for exchanged active power and reactive power control, which respectively takes capacity utilization ratio and power factor as the consensus variable, was formulated according to the different conditions of exchanged power imbalance. The parameter tuning method for three kinds of distributed optimization control strategies were given. The correctness and effectiveness of the proposed method were verified by simulation examples in IEEE14 node system. The method provides a reference to achieve optimal operation of distribution network with high permeability distributed generation accessing.

     

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