| 永磁同步风力发电机匝间和退磁故障早期检测 |
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| 引用本文： | 刘颖明,张天琦,王晓东,高兴,谢洪放. 永磁同步风力发电机匝间和退磁故障早期检测[J]. 太阳能学报, 2022, 43(10): 252-258. DOI: 10.19912/j.0254-0096.tynxb.2021-0307 |
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| 作者姓名： | 刘颖明 张天琦 王晓东 高兴 谢洪放 |
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| 作者单位： | 1. 沈阳工业大学电气工程学院,沈阳 110870;2. 沈阳工程学院电力学院,沈阳 110136 |
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| 基金项目： | 辽宁省“兴辽英才计划”（XLYC1802041）; 辽宁省中央引导地方科技发展资金计划（2021JH6/10500166） |
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| 摘 要： | 永磁同步发电机在发电效率、可靠性、电网友好性等方面具有独特的优势,已逐渐成为5 MW及以上容量的风电机组的主流选择。该文针对永磁同步电机退磁和绕组匝间短路2种常见故障的特点和监测方法进行研究,并建立2种故障的数学模型。提出一种基于零序电压分量和故障指示量的方法,可实现匝间短路早期轻微故障检测及故障相的判断;提出一种基于滑模观测器的退磁故障在线监测方法,该方法可准确辨识永磁体磁链,具有辨识精度高和速度快的特点。仿真结果验证了2种故障诊断方法的有效性及优势。
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| 关 键 词： | 永磁同步电机 故障诊断 匝间短路 失磁故障 零序电压 |
| 收稿时间： | 2021-03-24 |
EARLY DETECTION OF INTER-TURN AND DEMAGNETIZATION FAULTS OF PERMANENT MAGNET SYNCHRONOUS WIND GENERATOR |
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| Liu Yingming,Zhang Tianqi,Wang Xiaodong,Gao Xing,Xie Hongfang. EARLY DETECTION OF INTER-TURN AND DEMAGNETIZATION FAULTS OF PERMANENT MAGNET SYNCHRONOUS WIND GENERATOR[J]. Acta Energiae Solaris Sinica, 2022, 43(10): 252-258. DOI: 10.19912/j.0254-0096.tynxb.2021-0307 |
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| Authors: | Liu Yingming Zhang Tianqi Wang Xiaodong Gao Xing Xie Hongfang |
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| Affiliation: | 1. Institute of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China;2. School of Electric Power, Shenyang Institute of Engineering, Shenyang 110136, China |
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| Abstract: | Permanent magnet synchronous generator has unique advantages in power generation efficiency, reliability, grid friendliness and other aspects, and has gradually become the mainstream choice of wind turbines with capacity of 5 MW and above. In this paper, the characteristics and monitoring methods of demagnetization and short circuit between winding turns of permanent magnet synchronous motor are studied, and the mathematical models of these two faults are established. A method based on zero-sequence voltage component and fault indication is proposed to detect early minor fault and judge fault phase of inter-turn short-circuit. An on-line demagnetization fault monitoring method based on sliding mode observer is proposed. The method not only can precisely identify the permanent magnet flux, but also possesses the advantages of higher identification precision and faster speed. The simulation results verify the availability and advantages of the two fault diagnosis methods. |
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| Keywords: | permanent magnet synchronous motor fault diagnosis inter-turn short-circuit demagnetization zero sequence voltage |
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