基于永磁体温度场的海流永磁发电机的可靠性分析

doi:10.11985/2017.07.006

电气工程学报 ›› 2017, Vol. 12 ›› Issue (7): 33-39.doi: 10.11985/2017.07.006

基于永磁体温度场的海流永磁发电机的可靠性分析

陈艳羚,汤天浩,谢卫

上海海事大学电气传动与控制研究所上海 201306

收稿日期:2016-08-02 出版日期:2017-07-25 发布日期:2019-11-25
作者简介:陈艳羚女 1992年生,硕士,研究方向为电力电子与电气传动。|汤天浩男 1955年生,博士,教授、博士生导师。IEEE Senior Member。研究方向为新能源电能变换、电机与控制等。

Reliability Analysis of Marine Current Power Permanent Magnet Generator Based on Temperature Field of the Permanent Magnet

Chen Yanling,Tang Tianhao,Xie Wei

Institute of electrical drive and control, Shanghai Maritime University Shanghai 201306 China

Received:2016-08-02 Online:2017-07-25 Published:2019-11-25

摘要/Abstract

摘要：

海流发电机在海洋环境下工作,相比于风力发电机,其工作环境更恶劣,例如海水腐蚀、密封问题等,一旦海流发电机发生故障,吊装维修十分困难且成本很高,所以必须对其进行可靠性分析。本文通过建立电机可靠性模型,采用元器件应力分析法对电机进行可靠性预计,考虑到永磁体失效是永磁电机的特有故障,且永磁体高温下容易发生不可逆失磁,故对电机进行磁–热耦合仿真,并分析电机尺寸参数对永磁体温度及电机寿命的影响。

关键词: 海流发电机, 可靠性预计, 磁–热耦合仿真

Abstract:

Marine current power generator works under the current, so its working environment is worse than wind power generator, such as sea water corrosion, sealing problems etc., once the marine current power generator breaks down, lifting maintenance is difficult and the cost is very high, so it is necessary to analyze the reliability of the marine current power generator. Reliability model of the generator is established and parts stress analysis is used to predict its reliability. Considering the permanent magnet failure is the specific failure of permanent magnet generator and the irreversible demagnetization of permanent magnet occurs easily under high temperature, the magnetic-thermal coupling simulation for the generator is conducted and the effect of size parameters on the temperature of the permanent magnet and the life of the generator is analyzed.

Key words: Marine current power generator, reliability prediction, magnetic-thermal coupling simulation

中图分类号:

TM313

陈艳羚,汤天浩,谢卫. 基于永磁体温度场的海流永磁发电机的可靠性分析[J]. 电气工程学报, 2017, 12(7): 33-39.

Chen Yanling,Tang Tianhao,Xie Wei. Reliability Analysis of Marine Current Power Permanent Magnet Generator Based on Temperature Field of the Permanent Magnet[J]. Journal of Electrical Engineering, 2017, 12(7): 33-39.

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元器件或部件名称	失效模式	比例(%)
同步电机	线圈故障	45
	轴承故障	33
	电刷故障	22

基于永磁体温度场的海流永磁发电机的可靠性分析

Reliability Analysis of Marine Current Power Permanent Magnet Generator Based on Temperature Field of the Permanent Magnet

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