| 瞬时电量采样值一点算法及在微机保护中的应用 |
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| 引用本文： | 林涛,尹项根,陈德树.瞬时电量采样值一点算法及在微机保护中的应用[J].华中科技大学学报(自然科学版),1997(2). |
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| 作者姓名： | 林涛 尹项根 陈德树 |
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| 作者单位： | Lin Tao Doctoral Candidate; Dept. of elec. Power Eng.，HUST，Wuhan 430074，China. Ying Xianggeng Chen Deshu |
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| 摘 要： | 在Ｐａｒｋ方程的基础上，提出了发电机端瞬时功率和视在阻抗的采样值一点算法，并分析了其在微机保护中的应用．该算法有效地解决了机端阻抗变化轨迹、变化率以及功率变化情况的实时测量问题，其结果可供多种保护共享
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| 关 键 词： | 瞬时功率 视在阻抗 微机保护 |
Algorithm for Instantaneous Electrical Quantities and Its Application in the Microcomputer Based Protection System |
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| Lin Tao Doctoral Candidate, Dept. of elec. Power Eng.,HUST,Wuhan ,China. Ying Xianggeng Chen Deshu.Algorithm for Instantaneous Electrical Quantities and Its Application in the Microcomputer Based Protection System[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(2). |
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| Authors: | Lin Tao Doctoral Candidate Dept of elec Power Eng HUST Wuhan China Ying Xianggeng Chen Deshu |
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| Institution: | Lin Tao Doctoral Candidate, Dept. of elec. Power Eng.,HUST,Wuhan 430074,China. Ying Xianggeng Chen Deshu |
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| Abstract: | An algorithm for instantaneous real power and reactive power as well as instantaneous apparent impedance at mechine terminals in a balanced three phase system has been obtained after the relationships between the instantaneous power, voltage and current in dqo system is converted into those in abc system by Park equations. The algorithm is characterized by a short data window and less constraints. It is adaptable to various field conditions and the results can be shared by many kinds of protection such as that for out of step and loss of excitation. |
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| Keywords: | instantaneous power apparent impedance microcomputer based protection |
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