| 自适应振荡闭锁判据的理论基础 |
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| 引用本文： | 林湘宁,刘沛,冯兴学. 自适应振荡闭锁判据的理论基础[J]. 电力系统自动化, 2004, 28(6): 45-50 |
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| 作者姓名： | 林湘宁 刘沛 冯兴学 |
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| 作者单位： | 华中科技大学电气与电子工程学院,湖北省武汉市,430074;广州白云国际机场有限公司,广东省广州市,510000 |
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| 摘 要： | 提出在电力系统振荡时，利用振荡轨迹在穿越2个灵敏度不同的动作圆时，存在时间差且振荡轨迹在内圆停留的时间与时差之间比值有限的特点，实现新的距离保护自适应振荡闭锁策略。探讨了对该判据最不利的振荡条件，并进行严格数学证明，为该判据的工程实现奠定了理论基础。
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| 关 键 词： | 距离保护 自适应振荡闭锁 判据 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
THEORETICAL ANALYSIS OF THE SELF-ADAPTIVE BLOCKING CRITERION OF POWER SWINGS |
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| Lin Xiangning,Liu Pei,Feng Xingxue. THEORETICAL ANALYSIS OF THE SELF-ADAPTIVE BLOCKING CRITERION OF POWER SWINGS[J]. Automation of Electric Power Systems, 2004, 28(6): 45-50 |
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| Authors: | Lin Xiangning Liu Pei Feng Xingxue |
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| Abstract: | A novel self-adaptive power swing blocking scheme is proposed based on the facts that when the apparent impedance locus passes through boundaries of two impedance circles, there must exist the finite time difference with different sensitivity and the rate between the time of the locus staying in the inside circle. For the implementation of this scheme, the worst condition for the correct action of the proposed criterion is presumed and proved. |
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| Keywords: | distance protection self-adaptive power swing blocking criterion |
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