一种智能配电网安全运行控制方法

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摘要分布式电源(DGs)高渗透率接入,将改变配电网结构及潮流分布,需要对传统电压与负载率的控制方法进行改进.本文通过分析分布式电源接入后对配电网电压及负载率的影响,提出了一种基于灵敏度分析的多阶段决策的节点电压与线路负载率实时控制方法,有机融合了调节分布式电源出力,调节无功补偿装置,网络重构以及切负荷等控制手段,各阶段根据指标函数值判断是否执行.以改进IEEE 33节点系统作为算例,仿真一天内负荷及分布式电源出力的变化,对于节点电压与线路负载率越过限值时刻给出相应的控制措施,结果验证了本文方法的正确性.

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	陈春
	汪沨
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	刘玮

关键词 ：分布式电源, 节点电压与线路负载率, 多阶段决策, 灵敏度分析

Abstract：Since the installation of distributed generators(DGs) with high penetration, the configuration and power flow profile of distribution system will be changed, and it is necessary to reform the control methods of nodal voltage and line loading rate. A multi-stage decision of sensitivity analysis method is presented in this paper to control the moment time of nodal voltage and line loading rate, and it is organic integration of regulation of output for distributed generators and reactive power compensation device, network reconfiguration, and load shedding. Whether the stage is executed or not based on the value of state function. The variation of load and DGs output within a day is simulated to generate the corresponding control measures of nodal voltage and line loading rate over the limit. The effectiveness of the propose approach is demonstrated by simulations on the improved IEEE 33-nodes systems.

Key words： Distributed generations nodal voltage and line loading rate multi-stage decision sensitivity analysis

收稿日期: 2014-10-13 出版日期: 2015-09-14

PACS:

TM46

基金资助:国家863计划资助项目(2011AA05A114)

作者简介: 陈春男,1987年生,博士研究生,主要研究方向为智能配电网运行优化控制.汪沨男,1972年生,教授,博士生导师,主要研究方向为高电压绝缘及气体放电.

引用本文:

陈春,汪沨,刘蓓,曹一家,刘玮. 一种智能配电网安全运行控制方法[J]. 电工技术学报, 2015, 30(12): 357-366. Chen Chun,Wang Feng,Liu Bei,Cao Yijia,Liu Wei. A Method of Safe Operation Control of Smart Distribution System. Transactions of China Electrotechnical Society, 2015, 30(12): 357-366.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I12/357

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