| 双时间尺度电力系统动态模型降阶研究(一)——电力系统奇异摄动模型 |
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| 引用本文： | 刘永强,严正,倪以信,吴复立.双时间尺度电力系统动态模型降阶研究(一)——电力系统奇异摄动模型[J].电力系统自动化,2002,26(18):1-5. |
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| 作者姓名： | 刘永强 严正 倪以信 吴复立 |
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| 作者单位： | 1. 华南理工大学电力学院,广东省广州市 510640
2. 香港大学电机与电子工程系,中国香港 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，G1998020307,G1998020308， |
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| 摘 要： | 电力系统是一个时间尺度的大规模非线性系统，其稳定性分析非常复杂，为提高稳定计算的效率，对复杂的电力系统模型进行化简，以实现系统化降阶非常必要。文中以电力系统物理电路为基础，导出了一个计及电磁快动态的电力系统奇异摄动模型。推导中，以感应电动机并联线性阻抗为负荷模型，并考虑了线路充电容与负荷补偿电容，该模型是一个标准的双时间尺度模型，为电力系统的系统化降阶与分析奠定了基础。
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| 关 键 词： | 双时间尺度 电力系统 动态模型降阶 奇异摄动模型 电磁暂态 电力系统稳定性 非线性分析 微分代数方程 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 2002年1月31日 |
STUDY ON THE ORDER REDUCTION OF TWO-TIME SCALE POWER SYSTEM DYNAMIC MODELS: Part One Power System Singular Perturbation Model |
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| Liu Yongqiang ,Yan Zheng ,Ni Yixin ,Felix Wu.STUDY ON THE ORDER REDUCTION OF TWO-TIME SCALE POWER SYSTEM DYNAMIC MODELS: Part One Power System Singular Perturbation Model[J].Automation of Electric Power Systems,2002,26(18):1-5. |
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| Authors: | Liu Yongqiang Yan Zheng Ni Yixin Felix Wu |
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| Affiliation: | Liu Yongqiang 1,Yan Zheng 2,Ni Yixin 2,Felix Wu 2 |
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| Abstract: | Power system stability analysis is extremely complex due to its multi time scale nature, high dimensionality and non linearity. For improving the efficiency of power system stability analysis, it is necessary to study two time scale dynamic models of power systems and relevant model reduction. In this paper, a singular perturbation model incorporating fast and slow electromagnetic transients is derived based on physical circuits of power systems. The load model is treated as an induction motor in parallel with linear impedance, and line charging capacitance and compensation capacitors are also considered. The models derived in this paper lay the modeling foundation for performing systematic model reduction of power systems. |
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| Keywords: | power system singular perturbation model electromagnetic transients model reduction power system stability differential algebraic equations |
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