摘要
针对某型双馈发电机在运行中出现的振动过大问题,基于ADAMS/Vibration振动分析模块建立了双馈发电机与弹性支撑动力学仿真模型,进行了固有频率、能量解耦与自功率频谱分析,确定了弹性支撑刚度对发电机振动的影响关系,提出优化弹性支撑刚度与阻尼参数进行减振的方法。在ADAMS/Vibration平台上对优化弹性支撑后的发电机振动状态进行仿真评价,并与实际振动测试情况进行对比。结果表明,仿真与实测情况基本一致。通过优化弹性支撑,该型双馈发电机振动值得到大幅降低。
Aiming at the excessive vibration of a DF generator during operation, a dynamic simulation model of DF generator and elastic support was established based on ADAMS / Vibration vibration analysis module. The natural frequency, energy decoupling and self-power spectrum were analyzed. The influence of the stiffness of the elastic support on the vibration of the generator was determined and the approach of optimizing the stiffness of the elastic support and damping parameters was proposed. The vibration state of the generator with optimized elastic support was simulated and evaluated on the ADAMS / Vibration platform and was compared with the actual vibration test. The simulation results are in substantial agreement with the experimental results. By optimizing the elastic support, the vibration of the DF generator is greatly reduced.
引文
[1]刘木清.双馈风力发电机振动故障分析和实例处理[J].上海大中型电机,2012(1):71-75.
[2]吴洁.MW级双馈风力发电系统[J].装备机械,2012(3):9-14.
[3]李录平,卢绪祥.汽轮发电机组振动与处理[M].北京:中国电力出版社,2007.
[4]陈纪军,尹曾锋,张越雷,等.1.5 MW双馈风力发电机振动研究[J].电机与控制应用,2013,40(3):17-19,56.
[5]万军红.电动机转子动平衡工艺的设计[J].电机与控制应用,2008,35(10):55-59.
[6]沈标正.电机故障诊断技术[M].北京:机械工业出版社,1996.
[7]刘宇,谭伟,闻婧.大型双馈风力发电机振动特性分析与故障诊断[J].风机技术,2012(4):56-59.
[8]廖明夫,GASCH,TWELE.风力发电技术[M].西安:西北工业大学出版社,2009.
[9]李增刚.ADAMS入门详解与实例[M].北京:国防工业出版社,2006.
[10]陈峰华.ADAMS 2012虚拟样机技术从入门到精通[M].北京:清华大学出版社,2013.
[11]CHO S.Configuration and Sizing Design Optimization of Powertrain Mounting Systems[J].International Journal of Vehicle Design,2000,24(1):172-181.
[12]屈维德,唐恒龄.机械振动手册[M].2版.北京:机械工业出版社,2000.