摘要
采用反相位振动控制算法对高速工况下的多支撑变截面大型汽轮发电机组转子轴承系统的弯曲振动抑制方法进行了研究,在此基础上针对300 MW汽轮发电机组,模拟并搭建其实验平台进行控制试验验证.对采集到的非平稳轴系振动信号,用全局小波振幅谱分析.最后,由识别出的对振动起主要作用的频率及其振幅谱可知,所采用的反相控制技术简单易行,工作可靠,减振效果明显.
The inverse phase vibration control algorithm was developed to reduce the bending vibration of steam turbe-generator with multi-support and varied cross section at high-speed operating condition. To validate the control algorithm, a set of experimental apparatus was built to simulate the 300 MW steam turbo-generator. And the collected non-steady signals were analyzed by the global wavelet amplitude spectrum. From the identified frequency and amplitude spectrum which play the significant role in the bending vibration, it can be concluded that the proposed inverse control method is simple, easy and reliable, and has obvious vibration reduction effect.
出处
《天津大学学报》
EI
CAS
CSCD
北大核心
2007年第7期844-848,共5页
Journal of Tianjin University(Science and Technology)
基金
国家自然科学基金资助项目(50475112)
关键词
汽轮发电机组
弯曲振动
反相位控制
主动振动控制
steam turbo-generator
bending vibration
inverse phase control
active vibration control
