Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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考虑分布式电源接入的配网线损影响指标研究

来源:电工电气发布时间:2018-01-22 13:22 浏览次数:570
考虑分布式电源接入的配网线损影响指标研究
 
刘若愚,杨勇,陈辉,林怀德
(广东电网有限责任公司佛山供电局,广东 佛山 528011)
 
    摘 要:分布式电源(DG)并网对配网线损会造成重要影响,但目前仍缺乏成熟的量化分析指标。开展了比较系统的含分布式电源的配网线损指标体系研究,梳理了配网线损的内部影响因素,将其分为线路基本属性、运行参数及管理因素等三大类;分析了DG对配网内部主要影响因素的影响,建立包含DG负荷需求、并网特点、运行方式及机组配置等四方面的外部影响指标体系,以指标高贡献率与计算分析方便为原则从中筛选得到实用影响指标,并以此为基础进行影响模式的具体理论分析;以某典型10 kV 配网模型为例,定量地分析DG在不同并网容量、并网位置和并网运行方式下对配网各部分线损的影响,所得结论可为DG的电网规划及电网的降损规划提供理论指导。
    关键词:分布式电源;配网线损;影响指标体系;实用影响指标
    中图分类号:TM727     文献标识码:A     文章编号:1007-3175(2018)01-0017-06
 
Research on Influence Indexes of Line Loss on Distribution Network Considering Distributed Generation
 
LIU Ruo-yu, YANG Yong, CHEN Hui, LIN Huai-de
(Foshan Power Supply Bureau, Guangdong Power Grid Corporation, Foshan 528011 , China)
 
    Abstract: Distributed generation has a significant impact on line loss of the distribution network. However, there is still a lack of mature quantitative analysis index. This paper has carried out a systematic research on the distribution network line loss index system considering distributed generation of compared system. The internal factors influencing on the line loss were divided into three categories: basic attributes, operating parameters and management factors. This paper analyzed the DG impact on the main influence factors inside distribution network, established the external influence index system including DG load demand, grid connection characteristics, operation mode and unit configuration. Practical influence indexes were chosen on the basis of the higher contribution rate of index, as well as its easier analysis accessibility. On this basis, this paper carried out the concrete theoretical analysis of influence mode. Taking a typical 10 kV distribution model for example, this paper quantificationally analyzed the influence of DG on each part of line loss of the distribution network under the different grid connected capacity, location and operation mode. The conclusion can provide the theoretical guidance for DG grid planning and power loss planning.
    Key words: distributed generation; distribution network line loss; influence index system; practical influence index
 
参考文献
[1] 崔弘,夏成军,罗宗杰,张尧. 分布式电源并网对配网系统的影响[J]. 电气应用,2009,28(24):54-58.
[2] 裴玮,盛鹍,孔力,齐智平. 分布式电源对配网供电电压质量的影响与改善[J]. 中国电机工程学报,2008,28(13):152-157.
[3] 杨海霞. 分布式电源接入对配网的影响研究[J].中国电力教育,2014(35):199-200.
[4] 郭春菊. 分布式电源接入对配电网运行的影响[D].上海:上海交通大学,2013.
[5] 张瑜,孟晓丽,方恒福. 分布式电源接入对配电网线损的影响分析[J]. 电力建设,2011,32(5):67-71.
[6] 雷敏,杨万里,李丹,张骏杰. 分布式电源并网对配电网的影响[J]. 湖南工业大学学报,2014(5):68-73.
[7] 王义贺,栗然,马慧卓,刘洋.10 kV配网接入分布式电源后电压及网损的计算与分析[J]. 东北电力技术,2013,34(3):4-9.
[8] 柳占杰,许跃进. 基于电压制式的电网最优供电半径研究[J]. 电力系统保护与控制,2010,38(19):87-91.