| 引用本文: | 李佩杰,罗翠云,白晓清,林颂晨,韦化.一种求解多相混合配电网潮流的扩展序分量法[J].电力系统保护与控制,2016,44(3):15-23.[点击复制] |
| LI Peijie,LUO Cuiyun,BAI Xiaoqing,LIN Songchen,WEI Hua.An extended sequence components method for solving multiphase power flow in distribution networks[J].Power System Protection and Control,2016,44(3):15-23[点击复制] |
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| 摘要: |
| 针对中低压配电网中单相、两相和三相混合供电的特点，扩展了传统的序分量法，提出了一种求解多相混合的配电网三相潮流计算方法。所提方法重新推导了单相、两相和三相网络中序分量间的转换关系，采用前推回代法进行求解，重点是在完全序分量坐标下解决了变压器部分组别的节点导纳矩阵奇异问题。4~8500节点的IEEE标准系统的计算表明：该方法收敛特性好、鲁棒性强，计算效率高，特别适用于大规模配电网的三相潮流计算。 |
| 关键词: 配电网 不对称网络 三相潮流 序分量 节点导纳矩阵奇异 |
| DOI：10.7667/PSPC150543 |
| 投稿时间：2015-04-03修订日期：2015-12-20 |
| 基金项目:国家重点基础研究发展计划项目(973项目) (2013CB228205)；国家自然基金项目(51367004，51407036) |
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| An extended sequence components method for solving multiphase power flow in distribution networks |
| LI Peijie,LUO Cuiyun,BAI Xiaoqing,LIN Songchen,WEI Hua |
| (Guangxi Key Laboratory of Power System Optimization and Energy Technology
(School of Electrical Engineering of Guangxi University), Nanning 530004, China) |
| Abstract: |
| According to the feature of hybrid power supply with one phase, two phases and three phases in the medium and low voltage distribution system, this paper extends the traditional sequence components method and presents a multiphase power flow solution. In the approach, the transform relationship of sequence components among one-phase network, two-phase network and three-phase network is reformulated by using forward-backward sweeping algorithm (FBS). Furthermore, this paper uses complete sequence components model to solve out the singularity problem of admittance matrix appearing in particular transformer connections. IEEE 4~8500 nodes standard systems are tested. Simulation results verify that the proposed solution has good convergence characteristics, strong robustness and efficient calculation. It also shows the superior applicability in large-scale distribution system three-phase power flow. |
| Key words: distribution system asymmetric network three-phase power flow sequence components method singularity of admittance matrix |
