“光伏扶贫”场景下配电网台区电压质量综合治理方案研究Study on a comprehensive voltage quality control scheme of distribution network areas in the context of “photovoltaic power stations for poverty alleviation”
杨媛平,杨扬,全相军,吴在军,王铖,李淑锋,王方胜,唐成虹
YANG Yuanping,YANG Yang,QUAN Xiangjun,WU Zaijun,WANG Cheng,LI Shufeng,WANG Fangsheng,TANG Chenghong
摘要(Abstract)：
随着“光伏扶贫”政策的推行，农户接入户用光伏上网售电成为农民创收新思路。然而，农村配电网的特性使得光伏大规模接入时带来的电压质量问题尤为严重。对此，首先针对光伏出力波动性及农村负荷分布复杂性，基于AP（近邻传播）聚类方法构建了系统典型场景。其次，综合考虑配电网双向潮流、电压约束、光伏、储能以及SVG（静止无功发生器）等有功、无功资源约束，构建了双层混合式配电网电压质量治理规划模型。最后，结合系统典型场景，采用分布鲁棒规划算法，给出系统线损率与电压质量治理的综合解决方案，并对比了各方案的优缺点。结果表明，所提电压治理方案可以在保证电压不越限的前提下有效降低成本、减小线损率，具有较好的安全性和经济性。
With the implementation of“photovoltaic power stations for poverty alleviation”,it becomes a new idea of earning extra income for farmer households with access to photovoltaic power and incorporating solar panels with power grid. In view of the characteristics of rural distribution networks,large-scale integration of photovoltaic power aggravates voltage quality. Firstly,given PV output fluctuations and complex distribution of rural loads,a typical system scenario is established using a clustering method based on AP(affinity propagation). Secondly,the paper establishes a voltage quality control and planning model of double-layer hybrid distribution networks based on constraints of active power sources and reactive power sources,including bi-directional power flow,voltage constraint,PV,energy storage,and SVG. Finally,the paper presents a comprehensive solution to line loss rate and voltage quality control using distributed robust planning algorithms based on typical system scenarios. The results show that the proposed voltage control scheme can reduce costs and line loss rate without exceeding the voltage limit,and is proved safe and economical.
关键词(KeyWords)：
光伏扶贫;电压质量;综合治理
photovoltaic power stations for poverty alleviation;voltage quality;comprehensive control
基金项目(Foundation): 国家电网有限公司总部科技项目（SGMD0000YXJS1900502）
作者(Author):
杨媛平,杨扬,全相军,吴在军,王铖,李淑锋,王方胜,唐成虹
YANG Yuanping,YANG Yang,QUAN Xiangjun,WU Zaijun,WANG Cheng,LI Shufeng,WANG Fangsheng,TANG Chenghong
DOI: 10.19585/j.zjdl.202209005
参考文献(References)：
- [1]史常凯，梁英，孟晓丽，等.城乡一体化布局下的农网智能化建设分析[J].电力系统自动化，2011,35(6):1-5.
- [2]黄利军，翟登辉，李瑞生，等.未来多源农村配电网安全与防护技术研究与探讨[J].电力系统保护与控制，2019,47(2):167-174.
- [3]高琼，倪斌，李斌，等.农村低压配电网的特点及理论线损的计算[J].长沙理工大学学报（自然科学版），2012,9(3):57-62.
- [4] WANG H,KOVAL D O,XU W. Canadian rural power quality statistical characteristics[C]//CCECE 2003-Canadian Conference on Electrical and Computer Engineering.Toward a Caring and Humane Technology(Cat. No.03CH37436.IEEE,2003,1:669-674.
- [5]汤红卫.农村电网合理技术指标的研究[J].电网技术，2006（增刊1）:295-297.
- [6] MADALA S,HERINK A,ROBINETTE M,et al. Improvements in rural load management by electric cooperatives through an effective SCADA system,and distribution connected generation[C]//2018 IEEE Rural Electric Power Conference(REPC).IEEE,2018:106-113.
- [7]王彪，郑涛，倪斌，等.计及三相负荷不平衡的农村低压配电网理论线损计算[J].电力科学与技术学报，2013,28(1):81-85.
- [8]金炜，徐斌，丁津津，等.基于协同自治的光伏扶贫农网电能质量综合控制技术研究[J].电力电容器与无功补偿，2017,38(3):157-161.
- [9]欧阳森，陈欣晖.考虑基态-差异化特征的台区无功优化配置策略[J].电网技术，2015,39(12):3513-3519.
- [10]殷德聪，许跃进，刘学会，等.计及负荷增长的农网电压序列改造时机研究[J].电网技术，2013,37(12):3590-3595.
- [11]涂青宇，苗世洪，张迪，等.分布式发电市场化环境下基于价格型需求响应的农村光伏交易模式研究[J].电工技术学报，2020,35(22):4784-4797.
- [12] LI H,GAO F,LI X,et al.Simulation study on series capacitor compensation to improve the voltage quality of rural power distribution network[J].World Journal of Engineering and Technology,2015,3:184-190.
- [13]洪博文，冯凯辉，穆云飞，等.农村分布式可再生能源利用模式与应用[J].中国电力，2020,53(2):99-104.
- [14]龚向阳，周开河，徐孝忠，等.含分布式光伏的配电网电压分区协调控制方案[J].电力系统及其自动化学报，2018,30(5):127-133.
- [15]高翔.含高渗透率分布式光伏的配电网电压分区协调控制[D].郑州：郑州大学，2019.
- [16]刘嘉彦，李勇，曹一家，等.考虑光伏利用效率的中低压配电网电压抬升抑制方法[J].电力系统自动化，2018,42(15):171-177.
- [17]李瑞生，翟登辉.光伏DG接入配电网及微电网的过电压自动调节方法研究[J].电力系统保护与控制，2015,43(22):62-68.
- [18]程绳.分布式电源接入配电网渗透率及运行协调优化研究[D].北京：中国电力科学研究院，2014.
- [19]周虎，陈佳黎，鲜龙，等.电网三相不平衡下农网低电压治理的研究[J].电网与清洁能源，2015,31(4):13-18.
- [20] MENDEZ Q H,RIVIER A J,GOMEZ S T.Assessment of energy distribution losses for increasing penetration of distributed generation[J]. IEEE Transactions on Power Systems,2006,21(2):533-540.
- [21] FREITAS W,VIEIRA J M,MORELATO A,et al.Influence of excitation system control modes on the allowable penetration level of distributed synchronous generators[J].IEEE Transactions on Energy Conversion,2005,20(2):474-480.
- [22]林海雪.现代电能质量的基本问题[J].电网技术，2001,25(10):5-12.
- [23]詹谭博驰.佛山地区农网低电压分析及综合治理方法研究[D].广东：广东工业大学，2017.
- [24] MUNDA G.Social multi-criteria evaluation for a sustainable economy[M].Berlin:Springer,2008.
- [25] LIU X. Economic load dispatch constrained by wind Power availability:a wait-and-see approach[J]. IEEE Transactions on Smart Grid.2010,1;1(3;3):347-355.
- [26]于蓉.基于多场景分析的分布式电源多目标规划[D].南昌：华东交通大学，2015.
- [27] FREY B J,DUECK D. Clustering by passing messages between data points[J]. Science,2007,315(5814):972-976.