Analysis on Shaft Torsion Response of 600MW Steam Turbine Unit Under Quick Load Regulation
The safe and stable operation of the large capacity thermal power unit must be seriously affected by the rapidly changed load when the unit participates in peak regulation. This paper takes a domestic 600MW steam turbine unit as an example, sets up a mass-spring model with lumped parameter method and calculates the torsional vibration responses of the shafts with the method combined Riccati transfer matrix method with Newmark-β method when the load rapidly changes. As a result, the maximum torque of the shaft appears on the coupling between the 2 # low pressure rotor and the generator rotor, the rotors torsional angles at the ‘maximum torque place are opposite when load rises and falls, the amplitude of torque has a relationship with the power when the load starts to change (The greater the power, the greater the torque.) and the power frequency is not included in the frequency spectrum of the torque.
600MW steam turbine unit peak shaving torsional vibration Riccati transfer matrix Method Newmark-β method
An Hong-wen Ma Zhi-yong Li Zhuang Zhong Cai-mao Liu Ying
School of Energy, Power and mechanical Engineering, North China Electric Power University, Beijing, School of Energy, Power and mechanical Engineering, North China Electric Power University, Beijing,
国际会议
长沙
英文
204-208
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）