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| 电力系统动态频率测量的"虚拟电枢磁势"法 | |
| 引用本文： | 崔学深,郭志忠,刘壮志. 电力系统动态频率测量的"虚拟电枢磁势"法[J]. 中国电力, 2000, 33(8): 31-34 |
| 作者姓名： | 崔学深 郭志忠 刘壮志 |
| 作者单位： | 1. 华北电力大学,北京,电力系,北京,102206 2. 哈尔滨工业大学,电气工程系,黑龙江,哈尔滨,150001 3. 中国电力科学研究院,系统所,北京,100085 |
| 摘 要： | 提出利用三相电压采样值计算频率的“虚拟电枢磁势”法，此方法构想了一种“虚拟电机”，以它的“电枢磁势”的旋转角速度作为节点的动态频率。此方法在计算过程中，能够滤除零序分量，在结合自适应调整采样周期方法之后，又消除了整次谐波和负序分量对测量频率的影响，跨越了繁琐复杂的滤波和滤序的过程，快速精确地测算了真实的电力系统实时频率。 |
| 关 键 词： | 动态频率 测量 虚拟电枢磁势法 电力系统 |
| 修稿时间： | 1999-12-20 |
The"Virtual Armature Magnetic Flux"Method for Measuring Dynamic Frequency of Power System |
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| CUI Xue-shen,GUO Zhi-zhong,LIU Zhuang-zhi. The"Virtual Armature Magnetic Flux"Method for Measuring Dynamic Frequency of Power System[J]. Electric Power, 2000, 33(8): 31-34 | |
| Authors: | CUI Xue-shen GUO Zhi-zhong LIU Zhuang-zhi |
| Abstract: | The paper presents a method of “virtual armature magnetic flux＂by usingthe sampling value of three－phase voltage．In this method，the rotating angularvelocity of the “virtual armature magnetic flux＂is taken as the dynamic frequency ofthe node．This calculation can eliminate the influence of negative－sequence，zerosequenceand harmonic signals，thus it is fast and accurate to obtain the true frequency of thepower system． |
| Keywords: | dynamic frequency virtual armature magnetic flux self-adaptive adjustment sampling cycle |
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