| 引用本文: | 李红伟,王敬章,张安安.一种含分布式发电系统的三相配电网潮流直接算法[J].电力自动化设备,2012,32(1): |
| LI Hongwei,WANG Jingzhang,ZHANG Anan.Direct algorithm of three-phase power flow for radial distribution network with DGs[J].Electric Power Automation Equipment,2012,32(1): |
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| 摘要: |
| 提出一种基于道路矩阵的三相不平衡配电网潮流直接算法，该算法充分利用配电网络的结构特点，建立了节点电压与注入电流的关系矩阵，实现了潮流的直接计算。基于PV节点的特性，推导了PV节点网络的有功电流和无功电流关系，并提出了一种新的处理PV类型分布式发电的方法。将该方法引入到三相系统潮流计算中，保证了PV节点幅值为预设定值（假定无功功率没有越界）。6母线和69母线系统算例验证了该方法简单实用，潮流计算时间短和迭代次数少，具有很好的通用性。 |
| 关键词: 分布式发电 PV节点 配电 潮流 道路矩阵 计算 |
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| 基金项目:四川省教育厅科研项目（11ZA022） |
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| Direct algorithm of three-phase power flow for radial distribution network with DGs |
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LI Hongwei1, WANG Jingzhang2, ZHANG Anan1
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1.School of Electrical Engineering and Information，Southwest Petroleum University，Chengdu 610500，China;2.Graduate School，Southwest Petroleum University，Chengdu 610500，China
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| Abstract: |
| A direct algorithm based on the path matrix for unbalanced three-phase power flow is presented，which fully exploits the topological features of distribution network to establish the incident matrix of node voltage and injection current for direct calculation of power flow. The relationship between reactive current and active current of PV node network is derived according to its characteristics and an approach is proposed to handle the PV-type distributed generator，which is simply implemented in the three-phase power flow calculation to guarantee the voltage magnitude of PV node as its set value（when its reactive power limit is not violated）. Case studies for the 6-bus and 69-bus test systems show its good performances in simplicity，computation speed convergence and universality. |
| Key words: distributed generation PV node electric power distribution power flow path matrix calculation |
