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| 含分布式电源的三相不平衡配电网连续潮流计算 | |
| 引用本文： | 赵晋泉,范晓龙,高宗和,戴则梅,陈刚.含分布式电源的三相不平衡配电网连续潮流计算[J].电力系统自动化,2015,39(9):48-53. |
| 作者姓名： | 赵晋泉 范晓龙 高宗和 戴则梅 陈刚 |
| 作者单位： | 1. 可再生能源发电技术教育部工程研究中心,河海大学,江苏省南京市210098;河海大学能源与电气学院,江苏省南京市210098 2. 南瑞集团公司(国网电力科学研究院),江苏省南京市,211106 3. 河海大学能源与电气学院,江苏省南京市210098;南瑞集团公司(国网电力科学研究院),江苏省南京市211106 |
| 基金项目： | 国家自然科学基金资助项目(51077042)；国家高技术研究发展计划（863计划）资助项目(2012AA050207)；高等学校博士学科点专项科研基金资助项目(20120094110008) |
| 摘 要： | 连续潮流是电力系统电压稳定分析的重要工具。针对含不同类型分布式电源的配电网及其三相线路参数和负荷不平衡的情况,提出了一种三相配电网连续潮流方法,由切线预测环节和牛顿法校正环节组成,并采用局部几何参数化策略处理三相不平衡系统PV曲线的斜锐角现象。考虑了PV和PQ节点类型分布式电源的限值约束,给出了新的节点类型双向转换逻辑和分岔点类型识别方法。通过对IEEE 33节点配电系统进行算例仿真,表明所述算法可以有效追踪三相配电系统的PV曲线,准确计算电压稳定临界点并识别分岔点类型。 |
| 关 键 词： | 连续潮流 电压稳定 配电网 分布式电源 节点类型转换逻辑 分岔点识别 |
| 收稿时间： | 2014/11/30 0:00:00 |
| 修稿时间： | 2015/4/10 0:00:00 |
Continuation Power Flow Calculation for Unbalanced Three-phase Distribution Networks with Distributed Generators |
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| ZHAO Jinquan,FAN Xiaolong,GAO Zonghe,DAI Zemei and CHEN Gang.Continuation Power Flow Calculation for Unbalanced Three-phase Distribution Networks with Distributed Generators[J].Automation of Electric Power Systems,2015,39(9):48-53. | |
| Authors: | ZHAO Jinquan FAN Xiaolong GAO Zonghe DAI Zemei and CHEN Gang |
| Affiliation: | Research Center for Renewable Energy Generation Engineering of Ministry of Education, Hohai University, Nanjing 210098, China; College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China,Research Center for Renewable Energy Generation Engineering of Ministry of Education, Hohai University, Nanjing 210098, China; College of Energy and Electrical Engineering, Hohai University, Nanjing 210099, China,NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China,College of Energy and Electrical Engineering, Hohai University, Nanjing 210098, China;NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China and Research Center for Renewable Energy Generation Engineering of Ministry of Education, Hohai University, Nanjing 210098, China; College of Energy and Electrical Engineering, Hohai University, Nanjing 210099, China |
| Abstract: | Continuation power flow is an important tool for assessing power system voltage stability. A continuation power flow calculation method for three-phase distribution networks is proposed for the unbalanced three-phase lines and loads existing in distribution networks with distributed generators (DGs). Composed of the tangent predictor and the Newton corrector, the proposed method uses local geometric parameterization technique for the characteristics of the PV curves of three-phase unbalanced systems. And a double-switching logic is proposed for handling the operation constraints of DGs modeled as PV and PQ nodes. A scheme for identifying the type of bifurcation is also given. Simulation results on an IEEE 33-bus distribution system show that the proposed method is effective in tracing the PV curves of three-phase distribution systems and calculating the voltage stability critical point as well as identifying the type of bifurcation. This work is supported by National Natural Science Foundation of China (No. 51077042), National High Technology Research and Development Program of China (863 Program) (No. 2012AA050207) and Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) of China (No. 20120094110008). |
| Keywords: | continuation power flow voltage stability distribution network distributed generator bus-type switching logic bifurcation identification |
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