| 负荷有色噪声扰动对电力系统动态稳定性的影响 |
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| 引用本文： | 曹一家,程时杰,陈德树.负荷有色噪声扰动对电力系统动态稳定性的影响[J].华中科技大学学报(自然科学版),1996(Z2). |
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| 作者姓名： | 曹一家 程时杰 陈德树 |
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| 作者单位： | 华中理工大学电力工程系 |
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| 摘 要： | 研究了负荷随机小扰动对电力系统动态稳定性的影响，对于负荷扰动被模拟为有色噪声过程的单机无穷大系统，给出了计算系统离开平衡点稳定区域的期望离出时间（动态稳定性指标）公式，讨论了系统参数对动态稳定性指标的影响，比较了负荷白噪声和有色噪声扰动对动态稳定性指标的影响．研究成果的应用有助于在进行电力系统规划、设计和运行时更准确地考察这些不确定性因素的影响．
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| 关 键 词： | 负荷 随机小扰动 动态稳定性 期望离出时间 |
The Effect of Colored Noise Existing in a Load on the Dynamic Stability of a Power System |
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| Cao Yijia,Cheng Shijie,Chen Deshu.The Effect of Colored Noise Existing in a Load on the Dynamic Stability of a Power System[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1996(Z2). |
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| Authors: | Cao Yijia Cheng Shijie Chen Deshu |
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| Institution: | Cao Yijia Cheng Shijie Chen Deshu |
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| Abstract: | The effect of small random disturbance of a load on the dynamic stability of a power system is investigated. For an infinite bus connected with only one single machine and with the variation of the load modeled as colored noise, a stability index, the expression for the calculation of the expected time of high output of the system deviating from its stable equilibrium, is given. The effects of both the colored noise and the white noise existing in the load on the dynamic stability index are discussed. |
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| Keywords: | loading small random disturbance dynamic stability expected time of high output Cao Yijia lect Dept of Elec Power Eng HUST Wuhan 430074 China |
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