| 引用本文: | 王建勋,吕群芳,刘会金,高丽萍.含分布式电源的配电网潮流快速直接算法[J].电力自动化设备,2011,31(2): |
| WANG Jianxun,LV Qunfang,LIU Huijin,GAO Liping.Fast and direct power flow algorithm for distributionnetwork with distributed generation[J].Electric Power Automation Equipment,2011,31(2): |
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| 摘要: |
| 提出一种可有效处理环网和分布式电源的快速直接算法，利用自然编号下的节点支路关联矩阵得到稀疏的网络层次矩阵，直接由该层次矩阵快速实现矩阵形式的前推回代。存在环网时将环路支路引入直接求解过程，无需补偿处理。内燃机、传统燃气轮机等分布式电源采用同步发电机，功率因数控制的作PQ节点，电压控制的作PV节点，采用电压控制逆变器作为并网装置的分布式电源，可作PV节点；采用电流控制逆变器作并网装置的光伏发电系统和储能系统处理为有功输出和注入电网电流恒定的PI节点；采用异步发电机并网运行的风力发电机和无励磁控制的同步发电机处理为负荷静特性节点。对IEEE多个标准算例进行仿真对比，指出环网和大多数类型分布式电源的引入并没有增大迭代次数，只有PV类型的分布式电源接入会对收敛速度产生一定的影响。 |
| 关键词: 层次矩阵 前推回代法 稀疏矩阵运算 分布式电源 |
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| Fast and direct power flow algorithm for distributionnetwork with distributed generation |
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WANG Jianxun1, LV Qunfang1, LIU Huijin1, GAO Liping2
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1.Wuhan University，Wuhan 430072，China;2.Luoyang Power Supply Company，Luoyang 471009，China
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| Abstract: |
| A fast and direct algorithm is proposed，which can effectively deal with looped network and distributed generation. The node-branch incidence matrix with natural number is used to form the sparse hiberarchy matrix，which is then used to directly achieve the rapid matrix back／forward sweep calculation. The loop branch of looped network can be introduced into the direct solution procedure and the compensation is not necessary. The internal combustion engines or gas turbines with synchronous generator are treated as PQ node in power factor control or PV node in voltage control；the distributed generations with voltage-controlled inverter as paralleling device are treated as PV node；the photovoltaic power generation system or energy storage system with current-controlled inverter as paralleling device are treated as PI node；the wind turbine with induction generator or synchronous generator without excitation control are treated as load node with static characteristics. Several normal IEEE examples are tested and the results show that only the PV-node distributed generation will introduce some impact on the convergence speed. |
| Key words: hiberarchy matrix back／forward sweep method sparse matrix manipulation distributed generation |
