Along with the continual enlargement of power grid interconnection scale in China, the impact of load model on calculation results of system simulation cannot be neglected.

随着我国电网互联规模的不断扩大，负荷模型对系统仿真计算结果的影响已不容忽视。

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Under the circumstance of interconnection of power network, the dynamic characteristic of generator excitation system has significant effect on power system stability.

在全国联网的形势下，发电机励磁系统动态特性对系统的稳定水平影响很大。

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This paper presents special characteristics of PV and its interconnection with the large power system, and reviews the status of the grid-connected PV.

分析了光伏发电系统及其并网的技术特点，简要阐述了光伏发电并网问题的研究现状。

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