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

doi:10.11985/2017.07.006

Abstract

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

CLC Number:

TM313

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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References 11

[1]	李科, 胡欲立 . 永磁直流电机温度场分析[J]. 鱼雷技术, 2010,18(3):228-235.
	Li Ke, Hu Yuli . Temperature field analysis of permanent magnet DC motor[J]. Torpedo Technology, 2010,18(3):228-235.
[2]	GJB299C—2006电子设备可靠性预计手册[S]. 北京:中国人民解放军总装备部, 2006.
[3]	Department of defense . Military handbook-electronic reliability design handbook[S]. USA, 1998.
[4]	William Denson, Greg Chandler, William Crowell , et al. Non-electronic parts reliability data[S]. Rome, 1991.
[5]	冯敬东, 来萍 . 电子产品MTBF的意义及工程化计算方法[J]. 电子产品可靠性与环境试验, 2008,26(2):15-24.
	Feng Jingdong, Lai Ping . Discussion on actual meaning and calculating method of MTBF for electronic product[J]. Electronic Product Reliability and Environmental Testing, 2008,26(2):15-24.
[6]	刘小龙, 侯樱, 赵文峰 . 海流发电机的发展和应用[J]. 能源工程, 2008(6):20-23.
	Liu Xiaolong, Hou Ying, Zhao Wenfeng . The developments and applications of marine current turbine[J]. Energy Engineering, 2008(6):20-23.
[7]	叶雪荣, 苏博男, 由佳欣 , 等. 基于有限元法的永磁直流电机三维稳态温度场分析[J]. 机电元件, 2012,32(2):40-44.
	Ye Xuerong, Su Bonan, You Jiaxin , et al. Analysis of three-dimensional steady temperature field of permanent magnet DC motor based on finite element method[J]. Electromechanical Components, 2012,32(2):40-44.
[8]	王树军, 刘健, 徐硕 , 等. 小型定速风力发电机对10kV分布式配电网中静电电压稳定性的影响[J]. 电气应用, 2016,35(17):25-27.
[9]	魏雪环, 兰志勇, 谢先铭 , 等. 永磁体涡流损耗与永磁同步电机温度场研究[J]. 电机与控制应用, 2015,42(5):28-31.
	Wei Xuehuan, Lan Zhiyong, Xie Xianming , et al. Research of eddy current loss of permanent magnet and temperature filed of PMSM[J]. Electric Machines& Control Application, 2015,42(5):28-31.
[10]	何柏荣, 马继瑞, 韩桂军 , 等. 海水温度垂直分布预报数据同化的离散伴随算子法[J]. 计算物理, 2009,17(5):553-559.
	He Borong, Ma Jirui, Han Guijun , et al. Discrete adjoint operator method for the data assimilation of vertical distribution of sea water temperature[J]. Chinese Journal of Computation Physics, 2009,17(5):553-559.
[11]	陈敏祥 . 温度应力对电动机可靠性及寿命的影响[J]. 中小型电机, 1998,25(3):18-21.
	Chen Minxiang . Effect of temperature stress on reliability and service life of electric motors[J]. S&M Electric Machines, 1998,25(3):18-21.

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