低压光伏集群无功运行模式优化
CSTR:
作者:
中图分类号:

TM761

基金项目:

国家自然科学基金(51877186);国网河北省电力有限公司科技项目(KJ2018003)


Study on reactive power operation mode optimization of low voltage photovoltaic cluster
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [21]
  • | | | |
  • 文章评论
    摘要:

    配电网中存在大量低压接入的分布式小容量光伏电源,其规模庞大且实时通信条件有限,在线调节的经济性和可操作性没有保障,因此难以有效利用这些无功资源进行配电网辅助调节。在此背景下,为发挥低压光伏无功调节潜力,提出一种按集群进行模式预设、在线自律运行的低压光伏参与中压电网无功运行模式优化策略。首先,以配变台区为无功集群单元进行平台化管理,以补偿馈线无功需求为目标进行日前无功匹配优化;其次,设计5种集群无功运行模式,构建日前预测运行场景并依据场景特征建立综合考虑馈线无功平衡度最优和集群间无功流动最小为目标的集群无功运行模式及参数优化模型,运用改进粒子群算法进行优化求解,使集群在各时段的运行模式组合方案能够最佳匹配馈线的无功需求并抑制无功不合理流动。最后,算例验证了该方法的有效性。

    Abstract:

    There are a large number of lowvoltage distributed smallcapacity photovoltaic power supply in the distribution network. Due to its large scale and limited realtime communication, its economy and operability of online adjustment can not be guaranteed. It is difficult to effectively use these reactive resources for auxiliary adjustment of the distribution network. Under the background, this paper proposes a lowvoltage photovoltaic participating in the reactive power operation mode optimization strategy of mediumvoltage grids based on cluster mode presets and online autonomous operation to make full use of the potential of lowvoltage distributed PVs (LVDPVs). Firstly, LVDPVs linked with the same transformer are assigned to a cluster and managed by a terminal platform. Secondly, the dayahead reactive power mode optimization is carried out aiming at compensating load reactive power demand within a feeder. Then, five cluster reactive power operation modes are designed and the dayahead prediction operation scenario is constructed. In addition, a cluster reactive power operation mode and parameter optimization model is established considering the optimal feeder reactive power balance and the minimum reactive power flow between clusters based on the scene characteristics. The improved particle swarm optimization algorithm is employed to solve the problem. Finally, examples verify the effectiveness of the proposed method.

    参考文献
    [1] 刘乐.光伏接入后配网馈线电压协同控制方法[J].电力科学与技术学报,2017,32(3):4349.LIU Le.Cooperative control of feeder voltage for distribution network with photovoltaic connected[J].Journal of Electric Power Science and Technology,2017,32(3):4349.
    [2] 丁健,马春雷,陈宣林,等.计及“源—网—荷”影响的主动配电网可靠性评估[J].电网与清洁能源,2020,36(3):1826.DING Jian,MA Chunlei,CHEN Xuanlin,et al.Reliability evaluation of active distribution network considering "SupplyGridLoad"[J].Power System and Clean Energy,2020,36(3):1826.
    [3] 庄双勇,赵伟,何学农,等.超谐波引发的电能质量问题及相关研究[J].电测与仪表,2019,56(1):4152.ZHUANG Shuangyong,ZHAO Wei,HE Xuenong,et al.Power quality problems caused by supraharmonics and related research[J].Electrical Measurement & Instrumentation,2019,56(1):4152.
    [4] 邢志斌,韦钢,贺静,等.基于图论的主动配电网双阶段电压控制[J].电工技术学报,2017,32(1):4047.XING Zhibin,WEI Gang,HE Jing,et al.A dual stage voltage control method in active distribution network based on graph theory[J].Transactions of China Electrotechnical Society,2017,32(1):4047.
    [5] 张艺镨,艾小猛,方家琨,等.基于极限场景的两阶段含分布式电源的配网无功优化[J].电工技术学报,2018,33(2):380389.ZHANG Yipu,AI Xiaomeng,FANG Jiakun,et al.Twostage reactive power optimization for distribution network with distributed generation based on extreme scenarios[J].Transactions of China Electrotechnical Society,2018,33(2):380389.
    [6] 张海鹏,林舜江,刘明波.考虑光伏不确定性的低压配电网分散无功补偿鲁棒优化配置[J].电网技术,2016,40(12):38803888.ZHANG Haipeng,LIN Shunjiang,LIU Mingbo.Robust optimal allocation of reactive power compensation in low voltage distribution networks considering uncertainty of photovoltaic generation[J].Power System Technology,2016,40(12):38803888.
    [7] 李鹏,于航,夏曼,等.分布式光伏集群分层多模式无功控制策略[J].电网技术,2016,40(10):30383044.LI Peng,YU Hang,XIA Man,et al.A hierarchical multimode var control strategy for gridconnected PV clusters[J].Power System Technology,2016,40(10):30383044.
    [8] Calderaro V,Conio G,Caldi V,et al.Optimal decentralized voltage control for distribution systems with inverterbased distributed generators[J].IEEE Transactions on Power Systems,2014,29(1):230241.
    [9] 贾清泉,祁希萌,宁思远,等.分散光伏并网系统参与电压无功调节的控制策略研究[J].太阳能学报,2015,36(12):29542960.JIA Qingquan,QI Ximeng,NING Siyuan,et al.Strategy research of voltage and reactive power operation involved with distributed PV system[J].Acta Energiae Solaris Sinica,2015,36(12):2954 2960.
    [10] 樊梦蝶,曾成碧,苗虹.微网逆变器无功出力按容量分配的改进控制策略[J].电力系统保护与控制,2019,47(23):100107.FAN Mengdie,ZENG Chengbi,MIAO Hong.Improved control strategy of microgrid inverters with reactive power distributed by capacity[J].Power System Protection and Control,2019,47(23):100107.
    [11] 苗文静,高瑜,刘其辉,等.基于风电变模式运行与OLTC协调的配电网电压控制策略[J].智慧电力,2019,47(11):4853.MIAO Wenjing,GAO Yu,LIU Qihui,et al.Voltage control strategy for distribution network based on wind power variable mode operation and coordination with OLTC[J].Smart Power,2019,47(11):4853.
    [12] 吕清洁,王韶,刘庭磊.含分布式发电的配电网有功-无功综合优化[J].电力系统保护与控制,2012,40(10):7176+83.LV Qingjie,WANG Yun,LIU Tinglei.Active/reactive power integrated optimization in distribution networks with distributed generation[J].Power System Protection and Control,2012,40(10):7176+83.
    [13] 张璐,唐巍,丛鹏伟,等.含光伏发电的配电网有功无功资源综合优化配置[J].中国电机工程学报,2014,34(31):55255533.ZHANG Lu,TANG Wei,CONG Pengwei,et al.Optimal configuration of activereactive power sources in distribution network with photovoltaic generation[J].Proceedings of the CSEE,2014,34(31):55255533.
    [14] 黄伟,刘斯亮,王武,等.长时间尺度下计及光伏不确定性的配电网无功优化调度[J].电力系统自动化,2018,42(5):154162.HUANG Wei,LIU Siliang,WANG Wu,et al.Optimal reactive power dispatch with longtime scale in distribution network considering uncertainty of photovoltaic[J].Automation of Electric Power System,2018,42(5):154162.
    [15] 符杨,廖剑波,李振坤,等.考虑越限风险的主动配电网日前优化调度及运行[J].中国电机工程学报,2017,37(21):63286338.FU Yang,LIAO Jianbo,LI Zhenkun,et al.Dayahead optimal scheduling and operating of active distribution network considering violation risk[J].Proceedings of the CSEE,2017,37(21):63286338.
    [16] 张进,胡存刚,芮涛.基于交替方向乘子法的主动配电网日前两阶段分布式优化调度策略[J/OL].中国电力:110
    [17] 刘佳陇,叶保璇,张诗建,等.主动配电网集中/就地自适应无功电压控制方法[J].电网与清洁能源,2019,35(11):2029.LIU Jialong,YE Baoxuan,ZHANG Shijian,et al.Adaptive centralized/local voltVAR control in active distribution network[J].Power System and Clean Energy,2019,35(11):2029.
    [18] 赵书强,张婷婷,李志伟,等.基于数值特性聚类的日前光伏出力预测误差分布模型[J].电力系统自动化,2019,43(13):3648.ZHAO Shuqiang,ZHANG Tingting,LI Zhiwei,et al.Prediction error distribution model of preday photovoltaic output based on clustering of numerical characteristics[J].Automation of Electric Power System,2019,43(13):3648.
    [19] 朱瑞金,郭威麟,龚雪娇,等.考虑天然气和电负荷之间相关性的短期电负荷预测[J].电力系统及其自动化学报,2019,31(8):2732.ZHU Ruijin,GUO Weilin,GONG Xuejiao,et al.Shortterm power load forecasting considering correlations between natural gas and power load[J].Proceeding of the CSUEPSA,2019,31(8):2732.
    [20] 范志成,朱俊澎,袁越,等.基于改进型直流潮流算法的主动配电网分布式电源规划模型及其线性化方法[J].电网技术,2019,43(2):504513.FAN Zhicheng,ZHU Junpeng,YUAN Yue,et al.Distributed generation planning model for active distribution network and linearization method based on improved DC power flow algorithm[J].Power System Technology,2019,43(2):504513.
    [21] 王宁,高朋,贾清泉,等.光伏并网系统参与电压调节的有功和无功协调控制策略研究[J].电工电能新技术,2017,36(8):2329.WANG Ning,GAO Peng,JIA Qingquan,et al.Research on active and reactive power coordination control strategy for PV gridconnected system for voltage regulation[J].Advanced Technology of Electrical Engineering and Energy,2017,36(8):2329.
    相似文献
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

王文宾,石磊磊,贾清泉,等.低压光伏集群无功运行模式优化[J].电力科学与技术学报,2021,36(1):117-126.
WANG Wenbin, SHI Leilei, JIA Qingquan, et al. Study on reactive power operation mode optimization of low voltage photovoltaic cluster[J]. Journal of Electric Power Science and Technology,2021,36(1):117-126.

复制
分享
文章指标
  • 点击次数:188
  • 下载次数: 1022
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 在线发布日期: 2021-04-16
文章二维码