Evaluation of damping of windings in a generator using oscillation energy dissipation
Evaluation of damping of windings in a generator using oscillation energy dissipation
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DOI：
10.1109/pesgm.2014.6939047
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
Lei Chen;Fei Xu;Y. Min;Fang Li
中科院分区：
文献类型：
--
作者：
Lei Chen;Fei Xu;Y. Min;Fang Li
提出了一种新的振荡能量分析方法，用于研究具有六阶模型的发电机的阻尼。推导了励磁绕组和三个阻尼器绕组的振动耗能公式，并根据特征向量定义了绕组的耗能系数。在单机系统中，发电机的能量耗散系数等于阻尼力矩系数。绕组的能量耗散系数可以用来定量地评价其阻尼。该方法为研究发电机中单个部件的阻尼及其特性提供了一种工具。在仿真算例中，给出了发电机四个绕组的定量阻尼值，并研究了参数对不同绕组阻尼值的影响。
A newly proposed oscillation energy analysis method is used to study the damping of a generator with sixth-order model. The oscillation energy dissipations of the field winding and three damper windings are derived, and the energy dissipation coefficients of the windings are defined based on the eigenvector. In the single-machine system, the energy dissipation coefficient of the generator is equal to the damping torque coefficient. The energy dissipation coefficient of a winding can be used to quantitatively evaluate its damping. The method offers a tool for the study of the damping of an individual component in the generator and its features. In simulation cases, the quantitative damping of four windings of a generator is revealed, and the influence of parameters on the damping of different windings is also studied.