1) critical characteristic point of out-of-step oscillation
失步振荡临界特征点
1.
This paper analyses the trajectory of P/Q at their maximum points when power system is under out-of-step oscillation conditions,and gets the method for detecting critical characteristic point of out-of-step oscillation.
文中分析了失步振荡时,有功功率、无功功率出现最大值时的变化规律,总结得到检测失步振荡临界特征点的方法,并据此提出一种新的可快速判断失步振荡的判据。
2) critical feature points
临界特征点
1.
This paper presents an image matching algorithm using critical feature points in space-scale,which represent image gray-level feature.
该文提出了一种用尺度空间下的临界特征点对图像进行匹配的方法。
3) salient critical points
特征临界点
1.
To effectively retrieve and reuse existing 3D model and relative design knowledge,aiming at the engineering triangular mesh model,based on mesh salient critical points,a 3D engineering retrieval algorithm was proposed,which was independent of Computer Aided Design(CAD).
为有效检索并重用现有三维模型及相关设计知识,针对工程三角网格模型,提出了一种与计算机辅助设计系统无关的基于网格特征临界点的三维工程模型检索算法。
4) out-of-step oscillation
失步振荡
1.
Many generators tripped immediately after out-of-step oscillation on August 14, 2003 and worsened the situation of U.
因而在2003年8月14日美加大停电事故中,一开始失步振荡,很多发电机失步保护动作跳闸,扩大了损失。
5) asynchronous oscillation
失步振荡
1.
Through the analyses to the asynchronous oscillation in power system, by systematic researches on the existing out-of-step criteria of power system, a power system separation device based on the law of changing impedance angle has been introduced in this article.
本文通过对电力系统的失步振荡过程进行分析,在研究已有的失步解列判据的基础上,提出了一种有效的判据,即利用阻抗角变化的规律来判断和检测失步状况,通过计算设备安装处测量的阻抗值来正确区分设备动作区,极大的提高了装置的灵敏性,并利用电压基波的变化曲线解决了振荡中心落在设备安装处时发生的死区问题。
2.
Research on Criteria of Asynchronous Oscillation Based On Compensation Theory;
应用提出的判据，在已有的硬件基础上，开发了新的失步振荡解列装置。
补充资料：失步
1.谓该去而没有去成。 2.乱了步伐。 3.畏避不前。 4.失其故步。比喻摹仿别人不成﹐反而丧失固有的技能。语本《庄子．秋水》:"且子独不闻寿陵余子之学行于邯郸与?未得国能﹐又失其故行矣﹐直匍匐而归耳。"
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条