计及省地联合调度的分层功率协调优化决策
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摘要
研究中低压电网的功率协调有利于电网内日前调度决策的制订。基于低压电网的主动性及调度权限部分转移,建立了省地联合调度模型。在此基础上,针对低压配电网内各元件及传输联络线的功率特性,构建了综合决策目标及约束模型,并通过遗传算法进行目标寻优。通过对标准节点系统的仿真,验证计及省地联合调度下的分层功率协调,能有效利用中低压不同层级电网的功率特性,提高全网调度的可靠性、经济型和灵活性。而模式的提出可以为中低压电网日前的调度决策提供有效参考。
Research on power coordination among low and medium-voltage power networks is helpful to days-ahead dispatch decision-making for the power network. Based on the initiative and partial transfer of dispatching right of the low-voltage power network, a model was established for combined dispatch at the provincial and prefectural levels. Furthermore, a model was set up for composite decision-making objects and constraints under consideration of the power characteristics of the components and transmission link line of the low-voltage distribution network, and object optimization was completed according to the genetic algorithm. Simulation of the standard node system proved that the hierarchical power coordination under consideration of combined dispatch at the provincial and prefectural levels could improve the reliability, economical efficiency and reliability of dispatch over the whole network by effectively utilizing the power characteristics of different levels of low and medium networks. The proposed mode could provide effective reference for days-ahead dispatch decision-making for low and medium-voltage power networks.
Research on power coordination among low and medium-voltage power networks is helpful to days-ahead dispatch decision-making for the power network. Based on the initiative and partial transfer of dispatching right of the low-voltage power network, a model was established for combined dispatch at the provincial and prefectural levels. Furthermore, a model was set up for composite decision-making objects and constraints under consideration of the power characteristics of the components and transmission link line of the low-voltage distribution network, and object optimization was completed according to the genetic algorithm. Simulation of the standard node system proved that the hierarchical power coordination under consideration of combined dispatch at the provincial and prefectural levels could improve the reliability, economical efficiency and reliability of dispatch over the whole network by effectively utilizing the power characteristics of different levels of low and medium networks. The proposed mode could provide effective reference for days-ahead dispatch decision-making for low and medium-voltage power networks.
引文
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[2]李利明,李征.基于分层多目标优化的微电网能量管理算法[J].电力建设,2018,39(4):75-82.
[3]KWASINSKI A.Technology planning for electric power supply in critical events considering a bulk grid,backup power plants,and micro-grids[J].IEEE Systems Journal,2010,4(2):167-178.
[4]MOREIRA C L,RESENDE F O,LOPES J A P.Using low voltage micro grids for service restoration[J].IEEE Transactions on Power Systems,2007,22(1):395-403.
[5]DOLAN M J,DAVIDSON E M,KOCKAR I,et al.Distribution power flow management utilizing an online optimal power flow technique[J].IEEE Transactions on Power Systems,2012,27(2):790-799.
[6]蒲天骄,刘威,陈乃仕,等.基于一致性算法的主动配电网分布式优化调度[J].中国电机工程学报,2017,37(6):1579-1589.
[7]艾欣,许佳佳.基于互动调度的微网与配电网协调运行模式研究[J].电力系统保护与控制,2013,41(1):143-149.
[8]金勇,刘俊勇,张曦,等.基于功能单元的高压配电网负荷转供分层优化模型[J].四川大学学报(工程科学版),2017,49(3):179-190.
[9]张旭升,李瑞生,黄利军,等.基于分层储能的主动配电网需求响应控制策略研究及实现[J].电力系统保护与控制,2017,45(15):40-49.
[10]苏小林,吴富杰,阎晓霞,等.主动配电网的分层调控体系及区域自治策略[J].电力系统自动化,2017,41(6):129-134.
[11]于文鹏,刘东,余南华.馈线控制误差及其在主动配电网协调控制中的应用[J].中国电机工程学报,2013,33(13):108-115.
[12]刘东,陈云辉,黄玉辉,等.主动配电网的分层能量管理与协调控制[J].中国电机工程学报,2014,34(31):5500-5506.
[13]AGUILAR J,SUMOZA R.Multiagent system interaction protocol for grid meta scheduling[J].IEEE Latin America Transactions,2009,7(6):713-725.
[14]桂义明,潘汉广.主动配电网的分层能量管理与协调控制[J].工程技术(引文版),2016(10):00042-00043.
[15]孙舟,田贺平,王伟贤,等.含新能源接入的配电网中储能系统协调控制策略[J].现代电力,2018,35(1):19-25.
[16]黄健昂,魏承志,文安.计及源荷不确定性的柔性直流配电网分层协调控制策略[J].电力系统自动化,2018,42(6):106-112.
[17]胡荣,张宓璐,李振坤,等.计及可平移负荷的分布式冷热电联供系统优化运行[J].电网技术,2018,42(3):715-721.