Title:
COMPREHENSIVE CONTROL METHOD AND DEVICE FOR STABILITY OF ROTOR SYSTEM OF CENTRIFUGAL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/227251
Kind Code:
A1
Abstract:
A comprehensive control method and control device for stability of a rotor system of a centrifugal compressor. The method comprises: obtaining operating parameter measured actual values of the centrifugal compressor and radial vibration displacements of a rotor; buffering the continuously obtained radial vibration displacements to form a displacement sample set; obtaining a first-order forward procession damping ratio of the rotor system according to the displacement sample set; updating operating parameter set values and electromagnetic force control parameters according to the first-order forward procession damping ratio; updating a parameter control signal according to the operating parameter measured actual values and the operating parameter set values, and generating an electromagnetic force control signal according to the radial vibration displacements and the electromagnetic force control parameters; respectively outputting the control signals to an operating parameter actuator (40) and an electromagnetic actuator (50) to respectively update the operating parameters of the centrifugal compressor and output electromagnetic force to the rotor of the centrifugal compressor. By means of the comprehensive control of the stability of the rotor system, the stability of the rotor can be guaranteed and the instability failure of the rotor can be avoided.
Inventors:
WANG WEIMIN (CN)
SHAO XING (CN)
LI QIHANG (CN)
GAO JINJI (CN)
SHAO XING (CN)
LI QIHANG (CN)
GAO JINJI (CN)
Application Number:
PCT/CN2020/103275
Publication Date:
November 18, 2021
Filing Date:
July 21, 2020
Export Citation:
Assignee:
UNIV BEIJING CHEM TECH (CN)
International Classes:
F04D27/00; F04D29/66
Foreign References:
| CN108361079A | 2018-08-03 | |||
| CN110778604A | 2020-02-11 | |||
| CN109029689A | 2018-12-18 | |||
| CN101561312A | 2009-10-21 | |||
| CN101949386A | 2011-01-19 | |||
| CN110685952A | 2020-01-14 | |||
| US5347190A | 1994-09-13 | |||
| JPH0893682A | 1996-04-09 |
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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