| 引用本文: | 张树卿,童陆园,洪 潮,欧开健.基于线性功率-电压方程的快速潮流计算方法[J].电力自动化设备,2013,33(6): |
| ZHANG Shuqing,TONG Luyuan,HONG Chao,OU Kaijian.Fast power flow calculation based on linear power-voltage equation[J].Electric Power Automation Equipment,2013,33(6): |
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| 摘要: |
| 针对大电网存在大量电阻电抗比偏大的串联支路的问题，提出并实现了一种快速潮流解算方法，该方法基于线性功率-电压方程构造迭代修正方程，迭代初值通过基于支路电阻电抗比的PQ法获得，并在迭代过程中设置加速收敛乘子以保证收敛性和求解精度。该方法中电压修正方向直观明了，易于编程实现。算例小系统和南方电网实际系统的潮流解算测试，表明了该方法具有较高的准确性和较好的适应性。 |
| 关键词: 潮流 线性功率-电压方程 大电网 大电阻电抗比 电力系统 |
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| 基金项目:国家重点基础研究发展计划（973计划）项目（2011CB302805） |
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| Fast power flow calculation based on linear power-voltage equation |
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ZHANG Shuqing1, TONG Luyuan1, HONG Chao2, OU Kaijian2
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1.Department of Electrical Engineering，Tsinghua University，Beijing 100084，China;2.Electric Power Research Institute，China Southern Power Grid，Guangzhou 510080，China
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| Abstract: |
| For large power grid with plentiful serial branches of large resistance-reactance ratio，a fast power flow calculation method is proposed and realized，which builds the iterative modification equation based on the linear power-voltage equation and the initial iterative value is calculated using the PQ method based on the continuation of branch resistance-reactance ratio. An accelerating convergence factor is added to the iterative process to ensure the convergence and solving accuracy. Its voltage modification direction is simple and clear，suitable for programming. The power flow calculations for a small system case and the practical Southern Grid show that，the proposed method is of high accuracy and good adaptability. |
| Key words: power flow linear power-voltage equation large power grid large resistance-reactance ratio electric power systems |
