| 含分布式电源的阻抗化配电网潮流算法 |
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| 引用本文： | 朱秋琦,徐青山,郭杨. 含分布式电源的阻抗化配电网潮流算法[J]. 电力科学与工程, 2012, 28(1): 18-23 |
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| 作者姓名： | 朱秋琦 徐青山 郭杨 |
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| 作者单位： | 东南大学电气工程学院,江苏南京,210096 |
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| 摘 要： | 提出了基于阻抗的改进前推回代法,将负荷等效成阻抗,回代过程中遇到分叉点即返回修正,简化了前推过程.总结了各类分布式电源的能源类型和并网接口形式,建立PQ,PI,PQ(V)和PV四种潮流计算模型.PI,PQ(V)节点在潮流迭代中可以转化为PQ节点,等效为恒阻抗模型,PV节点等效为并联补偿电抗.采用不同的DG接入方案,对31节点算例进行测试,研究各类分布式电源对系统的电压支撑作用以及所提算法的收敛性能.
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| 关 键 词： | 分布式电源 潮流模型 阻抗法 补偿电抗 |
Power Flow Algorithm for Distribution Network with Distributed Generation Based on Impedance |
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| Zhu Qiuqi , Xu Qingshan , Guo Yang. Power Flow Algorithm for Distribution Network with Distributed Generation Based on Impedance[J]. Power Science and Engineering, 2012, 28(1): 18-23 |
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| Authors: | Zhu Qiuqi Xu Qingshan Guo Yang |
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| Affiliation: | (School of Electrical Engineering,Southeast University,Nanjing 210096,China) |
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| Abstract: | A modified forward/backward sweep method based on impedance is presented in which the loads are considered as impedances.Each variable is modified when the bifurcation node is encountered in the backward process so that the forward process is simplified.The energy sources and interfaces for DGs are summarized and four DG models in power flow are established,namely PQ,PI,PQ(V) and PV type.PI and PQ(V) nodes can be converted to PQ node which is equivalent to constant impedance.PV node is equivalent to shunt compensation reactance.An example of 31 nodes case is tested with various types of DGs connected to study the voltage supporting capability of DGs for the system and the convergence performance of the algorithm proposed. |
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| Keywords: | distributed generation power flow model impedance method compensation reactance |
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