摘要
大量分布式电源的接入给配电网运行带来新的挑战，引发电压越限和潮流控制等一系列问题。智能软开关( soft open point，SOP )是一种能够灵活控制有功功率和无功功率的新型电力电子装置。光伏( Photovoltaic，PV )除输出有功功率外，可以通过逆变器提供无功补偿。因此，本文提出一种含SOP与PV的配电网协同优化运行方法。首先，以电压偏差、网损和弃光率最小为目标建立协同优化模型。计及光伏逆变器的三种无功输出模式，改进了光伏建模。同时，模型考虑了负荷波动性。模型求解采用了三种多目标优化算法，并求得折衷最优解。最后，采用IEEE 33节点系统进行了算例分析。仿真结果表明，SOP和PV在有功传输和无功补偿方面具有互补性。协同优化提高了功率控制能力和灵活性，提供了更好的电能质量和光伏消纳率。
Synergetic optimization operation method for distribution network based on SOP and PV
含智能软开关和光伏的配电网协同优化运行方法
Lei Chen, Ning Zhang, Xingfang Yang, Wei Pei, Zhenxing Zhao, Yinan Zhu, Hao Xiao
1.State Grid Shijiazhuang Electric Power Company, Shijiazhuang 130100,P.R.China
2.Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190,P.R.China
3.IEEE Power and Energy Society, New York, USA
收听作者1分钟语音介绍
Abstract
Keywords
Synergetic optimization;Soft open point (SOP);Photovoltaic (PV);Distribution network
Fig. 1 The power output curve of PV in a typical day
Fig. 2 The reactive power output range of PV inverter with three schemes. The black line represents Scheme 1. The blue line represents Scheme 2. The red line represents Scheme 3
Fig. 3 Three typical load curves of resident, commercial, and industrial loads
Fig. 4 System structure of five cases
Fig. 5 Voltage distribution with the access of different PV capacities. The PV capacities are 0 (a), 500 kW (b), 1000 kW (c), 1500 kW (d) and 2000 kW (e)
Fig. 6 Voltage distribution before (a) and after (b) SOP active power optimization
Fig. 7 Voltage distribution of before (a) and after (b) SOP reactive power optimization
Fig. 8 Voltage distribution with SOP optimization (a) and synergetic optimization (b)
Fig. 9 Voltage amplitude of the initial system
Fig. 10 Voltage amplitude with synergetic optimization of SOP and PV
Fig. 11 Optimal scheduling scheme of three PVs
Fig. 12 Optimal scheduling scheme of SOP
本文引文信息
Chen L, Zhang N, Yang X F, et al. (2023) Synergetic optimization operation method for distribution network based on SOP and PV, Global Energy Interconnection, 7(2): 130-141
陈磊，张宁，杨行方等 (2023) 含智能软开关和光伏的配电网协同优化运行方法. 全球能源互联网（英文）, 7(2): 130-141
Biographies
Lei Chen
Lei Chen is currently a Senior Engineer with the State Grid Shijiazhuang Electric Power Supply Company,He is also working as Deputy General Manager of the State Grid Shijiazhuang Electric Power Supply Company.
Ning Zhang
Ning Zhang is currently a Senior Engineer with the State Grid Shijiazhuang Electric Power Supply Company,He is also working as Deputy Director of the power dispatching and control center in State Grid Shijiazhuang Electric Power Supply Company.His research interests include automation and network security.
Xingfang Yang
Xingfang Yang is currently a Senior Engineer with the State Grid Shijiazhuang Electric Power Supply Company.He has been engaged in relay protection,automation,power grid dispatching and planning.He awarded the title of “outstanding technical experts and talents in State Grid Hebei Electric Power Co.,Ltd.”.His research interests include operation and management of new energy.
Wei Pei
Wei Pei received the Ph.D.degree in electrical engineering from the Chinese Academy of Sciences,Beijing,China,in 2008.He is currently a Professor and the Director of the Distributed Generation and Power System Research Group,Institute of Electrical Engineering,Chinese Academy of Sciences.His research interests include AC/DC Microgrids and Active Distribution Networks.He is Associate Editor of IET Smart Grid,IET Energy Systems Integration,and Young Editor of CSEE Journal of Power and Energy Systems.
Zhenxing Zhao
Zhenxing Zhao received the M.E.degrees in Beijing University of Chemical Technology in 2012,the B.S.degree in Hebei University of Technology in 2007.He is currently an assistant researcher of the Institute of Electrical Engineering (IEE),Chinese Academy of Sciences(CAS).His research includes renewable energy integration,energy management for smart grids,and artificial intelligence in power system.
Yinan Zhu
Yinan Zhu was born in 1995.He has been engaged in relay protection and power grid dispatching.He is currently a dispatch assistant in the regional dispatch team.
Hao Xiao
Hao Xiao received the Ph.D.degree in electrical engineering from the Chinese Academy of Sciences,Beijing,China,in 2015.He is currently an Associate Professor with the Institute of Electrical Engineering,Chinese Academy of Sciences.He is a senior member of IEEE PES.He servers as the Associate Editor of IET Smart Energy Systems and Guest Editor of CSEE Journal of Power and Energy Systems. His research interests include optimal operation and planning of power systems and application of artificial intelligence in power systems.
编辑：王彦博
审核：王 伟
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