EN考虑调相机静偏心故障下的暂稳态特性分析
Analysis of transient steady-state characteristics considering static eccentricity fault of synchronous condenser
- 电机与控制学报 2024年28卷第12期 页码：12-19
- 作者机构：
华北电力大学 电力与电子工程学院，河北 保定 071003
南卡罗来纳大学 电力与电子工程学院，美国 哥伦比亚 071003
河北大学 新闻传播学院，河北 保定 071002
华北电力大学 机械工程系，河北 保定 071003
- 作者简介：
通信作者：李俊卿
赵鹏（1998—），男，硕士研究生，研究方向为大型电气设备的故障诊断与数据分析、调相机的优化控制；
史玮明（1994—），女，博士研究生，研究方向为人工智能；
陈忠（1999—），男，硕士研究生，研究方向为电气设备的故障诊断与数据分析；
李颖（1999—），女，硕士研究生，研究方向为网络数据新闻分析；
张波（1998—），男，硕士研究生，研究方向为大型电气设备的故障诊断与深度学习；
王稚洺（1999—），女，硕士研究生，研究方向为大型电气设备的故障诊断与深度学习；
何玉灵（1984—），男，博士，教授，博士生导师，研究方向为换流站的状态检测及其故障诊断。
- 基金信息：国家自然科学基金(52177042)
DOI：10.15938/j.emc.2024.12.002
中图分类号： TM342收稿：2024-08-22，
纸质出版：2024-12
- 稿件说明：
移动端阅览
李俊卿, 赵鹏, 史玮明, 等. 考虑调相机静偏心故障下的暂稳态特性分析[J]. 电机与控制学报, 2024,28(12):12-19.
LI Junqing, ZHAO Peng, SHI Weiming, et al. Analysis of transient steady-state characteristics considering static eccentricity fault of synchronous condenser[J]. Electric Machines and Control, 2024, 28(12): 12-19.
李俊卿, 赵鹏, 史玮明, 等. 考虑调相机静偏心故障下的暂稳态特性分析[J]. 电机与控制学报, 2024,28(12):12-19. DOI： 10.15938/j.emc.2024.12.002.
LI Junqing, ZHAO Peng, SHI Weiming, et al. Analysis of transient steady-state characteristics considering static eccentricity fault of synchronous condenser[J]. Electric Machines and Control, 2024, 28(12): 12-19. DOI： 10.15938/j.emc.2024.12.002.
摘要
同步调相机的稳态和暂态无功补偿能力主要取决于其稳态同步电抗和暂态电抗，当调相机发生转子气隙静偏心故障时会导致暂稳态电抗发生变化。针对如何准确考虑大型同步调相机静偏心故障状态下暂稳态电抗参数的变化趋势问题，首先，从调相机的暂稳态电抗参数的定义和电机内部各绕组及磁路结构之间的电磁关系出发，推导出同步调相机静偏心故障对其暂稳态电抗的影响关系。其次，基于同步调相机机械参数搭建出有限元模型，利用超导回路法仿真计算出调相机的暂稳态电抗参数，其有限元计算结果与调相机实际值误差在5%以内。最后，对于不同静偏心故障程度下调相机的暂稳态电抗进行有限元计算，结果表明，随着调相机静偏心故障程度的增大，调相机稳态同步电抗和暂态电抗都呈现增大的趋势，与理论推导结果相符合。
Abstract
The steady-state and transient reactive power compensation ability of synchronous condenser mainly depends on its steady-state synchronous reactance and transient reactance. When the rotor air gap static eccentricity fault occurs
the transient and steady-state reactance will change. Aiming at the way to accurately consider the change trend of transient and steady-state reactance parameters under the static eccentric fault state of large synchronous condenser
based on the definition of the transient and steadystate reactance parameters of the synchronous condenser and the electromagnetic relationship between the windings and the magnetic circuit structure inside the motor
the influence of the static eccentricity fault of the synchronous condenser on its transient and steady-state reactance was derived. Secondly
the finite element model was built based on the mechanical parameters of the synchronous condenser
and the transient and steady-state reactance parameters of the synchronous condenser were calculated by using the superconducting circuit method. The error between the finite element calculation results and the actual value of the synchronous condenser is within 5% . Finally
the finite element calculation of the transient and steady-state reactance of the down-regulated camera with different degrees of static eccentricity fault was carried out. The results show that with the increase of the degree of static eccentricity fault of the synchronous condenser
the steady-state synchronous reactance and transient reactance of the synchronous condenser show an increasing trend
which is consistent with the theoretical derivation results.
关键词
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references
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