Research into the impact of shafts misalignment of turbocompressor installation on power characteristics of a drive engine

International Scientific and Research Conference on Knowledge-based Technologies in Development and Utilization of Mineral Resources

地球科学;矿业工程

Kipervasser, M.V.^1 ; Gerasimuk, A.V.^1

Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

关键词: Current protection;    Emergency situation;    MATLAB/ SIMULINK;    Mechanical power;    Planetary gearboxes;    Power characteristic;    Standard measurements;    Turbocompressor;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/45/1/012011/pdf
DOI  :  10.1088/1755-1315/45/1/012011

来源: IOP

【 摘 要 】

In the present paper the emergency situation in operation of a turbocompressor installation is considered, which leads to shafts misalignment, connected by rigid couplings, of the drive synchronous electric motor and multiplicator is considered. Misalignment of shafts causes vibrations in the course of work of a turbine unit that, in its turn, can result in untimely wear of bearings, loosening of different fasteners and breakdown of the whole installation. The analysis of shafts misalignment of electric motor and planetary gearbox (multiplicator) regarding the emergence of mechanical power surge and derivation of corresponding equations is performed. The mathematical modelling of a turbine unit operation taking into account misalignment in MatLAB Simulink is carried out. The graphs of mechanical power surges on the shaft of the electric motor and current surges in the phase of its stator are received. The conclusion about the possibility of recording stator current surges by standard measurement methods and use of this fact for development of a current protection against misalignment of shafts is made.