Device and method for diagnosing and controlling aerodynamic stability of a compressor

A compressor and stability technology, applied in engine control, components of a pumping device for elastic fluid, pump control, etc., can solve problems such as a single method, and achieve the effect of flexible regulation

Active Publication Date: 2019-03-01
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the research on the mechanism and control methods of compressor instability precursors is relatively isolated at home and abroad, and the method is relatively simple. There is no device and method that can simultaneously realize the research and analysis of instability precursors, real-time early warning, and online regulation.

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  • Device and method for diagnosing and controlling aerodynamic stability of a compressor
  • Device and method for diagnosing and controlling aerodynamic stability of a compressor
  • Device and method for diagnosing and controlling aerodynamic stability of a compressor

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0030] The purpose of the present invention is to provide a device and method for the diagnosis and control of the aerodynamic stability of the compressor, and at the same time realize the research and analysis of the instability precursor of the compressor, real-time early warning, and online regulation. When the compressor is running stably, its average airflow pulsation, including airflow pressure and velocity pulsation, is maintained within a certain range. Different from the average flow pulsation, the flow pressure or speed pulsation that can affect the stable operation of the compressor is called disturbance. After the disturbance occurs, if it is not suppressed or eliminated, the continuous development will cause ...

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Abstract

The invention discloses a device and method for diagnosing and controlling the aerodynamic stability of a compressor, which can simultaneously realize the research and analysis of the instability precursor of the compressor, real-time early warning, and online regulation. The device of the present invention includes measurement equipment, signal processing equipment and control execution equipment; the measurement equipment is used for real-time measurement of the pressure or velocity pulsation of the airflow at different positions inside the compressor, and transmits the real-time measurement signals obtained from different positions to the signal processing device; the signal processing device is used to judge the type and spatial distribution of the instability precursor of the compressor operation according to the real-time measurement signal, and output the corresponding control strategy signal to the control execution device; the control execution device receives the control strategy Signal, execute the corresponding control action, and adjust the stability of the compressor.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to an aerodynamic stability diagnosis and control device and method for a compressor. Background technique [0002] At present, the research on the mechanism and control methods of compressor instability precursors is relatively isolated at home and abroad, and the method is relatively single. There is no device and method that can simultaneously realize the research and analysis of instability precursors, real-time early warning, and online regulation. Aiming at the device and method integrating the diagnosis and control research functions of aerodynamic instability precursors, it can not only be used to clarify scientific issues such as complex instability precursors and instability mechanisms in the field of turbomachinery, but also contribute to the development of stability control of aero-engines. Technology provides support. Therefore, a device and method capable of disti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D27/02
CPCF04D27/001F04D27/02F04D27/0207F04D27/0246F04D27/0284F04D19/02F05D2260/80F05D2260/83F05D2270/804F05D2270/301F05D2270/304F04D27/0238F04D29/684F04D27/00F04D27/002G01M15/14
Inventor 李继超杜娟聂超群张宏武
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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