| 引用本文: | 余 娟,朱 柳,颜 伟,赵 霞,卢建刚,郭文鑫.基于内网实测信息的多端口外网静态等值方法[J].电力自动化设备,2013,33(6): |
| YU Juan,ZHU Liu,YAN Wei,ZHAO Xia,LU Jiangang,GUO Wenxin.Static equivalence of external multi-port network based on measured information of internal network[J].Electric Power Automation Equipment,2013,33(6): |
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| 摘要: |
| 在外网信息完全未知的情况下，提出基于内网实测信息的多端口外网静态等值方法，以估计多端口外网等值网络及其参数。该方法所需的内网实测信息不要求内网支路开断，利用外网等值参数与内网实测信息之间的约束关系，采用两阶段估计方案，建立多端口外网等值参数的量测方程及其两阶段的最小二乘模型，再利用最小二乘法求解得到多端口外网等值网络参数。IEEE 39节点系统和广东电网的仿真结果验证了所提方法的正确性。 |
| 关键词: 静态分析 静态等值 多端口 最小二乘 实测信息 模型 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（51007098，50577073） |
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| Static equivalence of external multi-port network based on measured information of internal network |
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YU Juan1, ZHU Liu1, YAN Wei1, ZHAO Xia1, LU Jiangang2, GUO Wenxin2
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1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology，Chongqing University，Chongqing 400030，China;2.Guangdong Electric Power Dispatching Center，Guangzhou 510600，China
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| Abstract: |
| A method of static equivalence based on the measured information of internal network is proposed to estimate the equivalent network of external multi-port network and its parameters when its information is completely unknown. It adopts the two-stage estimation scheme to set the measuring equation of equivalent external network parameters and its two-stage least squares model according to the constraint relation between the equivalent parameters of external network and the internal network information，which is measured without the break-off of internal network branch，and then applies the least squares method to obtain the equivalent parameters of external multi-port network. The simulative results for IEEE 39-bus system and Guangdong Power Grid verify the correctness of the proposed method. |
| Key words: static security analysis static equivalence multi-port least squares measured information models |
